How to make an external filter for an aquarium


External filter for aquarium do it yourself

What is an external filter for aquarium

There are two types of filters: external and internal. How to choose the one that fits exactly in your case?

First of all, pay attention to the size of your aquarium. If it is large enough, then there is not much difference. But usually we have only limited areas on which you can place either a small or medium aquarium. In this case, it will be appropriate to use an external filter.

Unlike the internal one, the external filter is not installed directly in the tank, but outside it. This helps to save space.

The external filter does not take place in the aquarium and does not spoil its overall appearance.

The work of such a device is as follows: water from the aquarium enters the device, passes through the filter elements, and then returns to the fish.

The external filter has the following advantages:

  • it does not occupy a useful place inside the aquarium;
  • the contents of the aquarium looks more aesthetic without such devices;
  • filtering fillers better purify water.

Of course, among the huge range of such devices, you can choose the right one in all respects for you. But their prices are too high. So why not take the opportunity to make an external filter with your own hands? This project is easy to implement. It turns out that everything you need can be easily purchased in stores and on the market, and the assembly and installation work itself is simple enough for even a novice to cope with it.

How to care for the aquarium filter?

For the filter to work properly, it must be regularly clean. Otherwise, it will start to work worse, and after that it will completely pollute the aquatic environment (the latter concerns internal filters).

The smaller the filter area and the larger the volume of water, the more often it is necessary to clean the filter.

To determine the regularity of cleaning the filter, you should not only carefully read the manufacturer's instructions, but also watch the filter in operation. If it starts to work less, then it's time to wash it. Smaller filters may require weekly cleaning, and large models may require just one cleaning in 2 months.

In order not to destroy the colony of good bacteria, wash the filter with water at room temperature and do not do it too carefully. In addition, you should not wash the filter, if you change the water in the aquarium, add new fish, enter a new feed, otherwise you will break the established balance in the aquarium.

Washcloth replacement in the filter - another important point. Do not do this too often. Wait until it begins to lose its filtering ability and shape. In addition, the washcloth in the internal filter consists of several parts, and only one of them is needed at a time so that, later, beneficial bacteria from the “old” parts quickly spread to new ones.

Remember that the filter in the aquarium should work constantly and without interruptions, so take a responsible approach to the choice of a suitable model and do not chase the cheapest option. Stop the choice on the qualitative equipment which well proved itself and will serve you for a long time.

Homemade external filter for aquarium.

Being a lover of aquarium with a small experience, I came to the conclusion that the internal filter in my aquarium does not cope with its task. And from the frequent maintenance of the filter, only the inhabitants of my aquarium suffered.

After examining the information on the filters, I came to the conclusion that the unambiguous correct solution is to use an external filter. Biofiltration is extremely effective, and none of the methods of water purification can even partially replace it.

The composition of water purified by an external filter is approximately similar to water in slow-flowing natural water bodies. With a weekly refreshment of one third of the volume of the main aquarium, it can be assumed that the ichthyofauna and hydroflora are contained practically in flowing natural water - hence all the successes achieved in systems with biofiltration.

The news was not pleasant for me that the cost of the external filter turned out to be comparable with the cost of the aquarium itself.

After reviewing the design of externalists, I decided to make with my own hands an analogue of the external filter Eheim.

For the manufacture of homemade external filter were purchased:
- Pump (fountain pump), the company RESUN Chinese production 30 W., 2000 l / h.
- PVC coupling for sewer pipe d = 200 mm. + 2 plugs to it,
- cranes, corners, sgony, etc.,
- PVC pipe d = 20 mm. for receiving and supplying water to the aquarium 4 m.
- a flask from the household filter,
- Fillers for the filter.

For inserts in the plugs used fittings of the following design.

My choice on this pump was due to the fact that the filter has many bends in the tubes and the final performance eventually fell by half.

Drilled holes in the upper and lower cap for the supply and pumping of water. When installing fittings, I used rubber gaskets with an additional use of silicone-ion sealant.

I tried to insert the plugs into the clutch with sealing rubber bands and I did not succeed, it worked out too tightly. Understanding that if I succeed in inserting a stub, I will not pull it out from there. Proceeding from this, I cut the edges of the coupling in order to disassemble the filter, if anything, then it was possible to remove the gum and thereby depressurize the filter. At the bottom of the coupling made the seat under the inlet fitting.

A cut of the coupling edge will later be installed inside the coupling and will hold the grid.

In the lower cap installed grid above the level of the nozzle. For this we had to pull a box for vegetables.

After that, with a clear conscience, we can install the bottom cap in the coupling. Since the sealing gum will not be used here, it is necessary to coat the entire area of ​​the plug with silicone. And after installing the plug, we additionally coat the joints inside and outside with sealant.

In the lid additionally drilled a hole for the mains wire and air release. It was not necessary to fasten the pump to the plug, and even without this it is reliably fixed by the length of the hose and the mains wire.

For sealing the network wire used a fitting similar to that used in street lamps. In place of the wire break set the switch.

Under the inlet pipe set bracket for mounting the bulb of the household filter, which will serve as a preliminary filter for coarse cleaning. It would have been possible to do without it, but then I would have to install a sponge on the inlet pipe directly in the aquarium, or wash the canister every month (in my plans, washing the canister will take place at least once every 6 months).

For the manufacture of pre. filter needed PVC sewer pipe d = 32 mm. In which many holes were drilled. It would be possible to use, in addition, in before. filter activated carbon or zeolite, but first decided to do a foam sponge.

When all the details of the filter assembly proceed to filling with fillers.

1 layer. At the bottom in the first place we settle the material for coarse filtration. For these purposes, the most suitable foam with a large cell. But unfortunately I did not manage to find sheet foam rubber for aquariums of a suitable size. And instead he used something like a ball of fishing line.

2 layer. Fill with ceramic rings. The purpose of their use in the filter,, is to branch the flow of water and evenly distribute its current over the entire transverse area of ​​the filtering material.

3 layer. We put a layer of foam rubber with a small cell. In my case the synthetic winterizer was used.

4 layer. Fill with "bio balls" substrate for colonies of nitrifying bacteria. In this section all the mysteries of the nitrogen cycle take place. Here heterotrophs, nitrifiers, and denitrifiers peacefully coexist, regularly performing the duties assigned to them; the working volume of the chamber should be 4/5 of the biofilter body capacity. As a substrate for bacteria, claydite (preferably crushed) can be used because it has a porous structure.

5 layer. It is not necessary, but I decided to add the substrate FLUVAL. Externally, it looks like ceramic rings, only the material has a porous structure. If you take a ring into your hand, ring, plug a hole on one side with your finger, and blow it into the other on the other, then all the air will escape through the micropores.

6 layer. The final layer, directly in front of the exit intake hole (i.e. before the filter pump, one should place the synthetic winterizer. It will protect the rotor from dirt particles entering it.

Homemade external filter for the aquarium is ready, the assembly was successful. Testing showed a very good pump performance, although the pump performance was 2 times less. The top cover is not fully installed, due to the strong tight fixation of the sealing gum. If you close the lid to the end, it is possible that the filter will no longer open.

Filter maintenance is reduced to cleaning the pre-filter as it gets dirty. Opening and washing the cans in half a year. I want to note that it is necessary to wash in the filter only ceramics and foam rubber and always aquarium water. The extract is washed only as needed.

The first time after launching a homemade external filter actually works only as a mechanical one. Beneficial bacteria have not yet colonized the substrate. Dirt fills the filter, which causes a decrease in its performance. The water pressure gradually decreases. But there is a reverse process. Dirt is food for bacteria. They break down the organic matter that accumulates here and is processed into nitrate, i.e. begins biological self-cleaning filter.

Full colonization of the substrate by colonies of beneficial bacteria occurs within 2-4 weeks. And then it all depends on what process will take up - pollution or self-cleaning. If the first, the filter will continue to be contaminated. Not as intense as the first two weeks, but inevitable. When the filter performance drops below 30% of the maximum, it needs to be cleaned and restarted, otherwise a so-called can occur. "tipping" - a violation of biological processes, as a result of which poisonous substances are produced and thrown into the aquarium.

If self-cleaning gains the upper hand, the filter on the contrary is gradually freed from dirt and the performance that falls to 50-70% of the maximum is restored. Theoretically, after that the filter should work forever. In practice, productivity is not fully restored, and inside the canister, from time to time, stagnant zones are formed. Therefore, I recommend cleaning it from time to time, even if the water pressure is strong.

In addition, I want to note that all metal parts should be free from lubrication. Because a drop of oil can spoil a ton of water and thereby destroy all of your inhabitants. Therefore, it is desirable to use plastic parts (fittings, angles, taps), which in turn are much cheaper than metal parts.

P.S. Later, I replaced the hoses with corrugated ones (which are used to drain the washing machine), since PVC hoses easily crumpled and thus blocked the access of water.

The lid will need to be pulled off with pins, otherwise, if the light is turned off, it may be torn out.

Metal taps and fittings replaced by plastic which are used for irrigation.





DIY Aquarium Filter

One of the important elements in the equipment of aquariums is the filter. Many think first of all about which one to choose: external or internal. If you are going to draw a large amount, then the type does not matter. In other cases, it is better to use an external filter to save space. In specialized stores there is always ready-made equipment, but its cost is sometimes quite high. In this article, we offer to make an aquarium filter with your own hands.

How to make a filter with your own hands?

All the components that we will use to assemble the external filter with your own hands can be purchased on the construction market or in construction hypermarkets.

  1. First of all, we need quick-release garden fittings with a sealed lead-in. As well as a filter with different nozzles, plugs with sockets and sockets.)
  2. In the plug we make holes for fittings, sealed lead-ins and teats.
  3. We assemble the first part of the external aquarium filter with our own hands: we install the fittings and the pressure seal with the nipples, and then fix all this with the help of silicone.
  4. Included with the filter is a special pump, it is also fastened through the adapter. The "head" of the design is ready.
  5. The next step in assembling the filter for the aquarium will be the inside. It consists of the upper filter, intermediate separators and the filter housing itself. As separators it is convenient to use ordinary kitchen nets for washing.
  6. Put a bell on the grid and draw its outlines with a marker. Cut out.
  7. We will use a capron saucer from a flower pot as the upper separator. We drill holes in it: one for the inlet and a lot of small ones around it.
  8. Install the workpiece in the socket, connect with the coupling and fix with silicone.
  9. We assemble the finished parts of the aquarium filter with your own hands. Attach the "head" to the pipe and the upper separator.
  10. Begin to fill the pipe. The author of the lesson proposes to use the following scheme: a sintepon, a separator, then a bio-ball, again a separator, and at the end foam rubber.
  11. Included filter has a special corner.
  12. We prepare the second cap as follows: along the edges with glue we attach rubber stoppers for medicine bubbles (similar materials can be used). Next, collect the filter.
  13. Now follows the assembly of connectors with male and female threads, and the installation of tubes. (photo 23)
  14. We assemble the fittings for the external filter with your own hands. As a rule, all the necessary details are included with the filter.
  15. We take any environmentally friendly tube and make holes in it to increase the indentation area. You will also need a suction net, a mosquito net (this will be a prefilter, you must twist it into a tube and insert it into the suction tube). The intake tube is put on the intake using a silicone gasket. A small piece of garden hose will do. Also in the kit must be a discharge socket, tap and corners. Even if you cannot find all this in the kit, there are exactly the same parts on the construction market.
  16. The arc connection for butt fittings is called "overflow". It can be made from any plastic tube or use an extension pipe of an Atman canister. The manufacturing process is simple: we fill the wet sand into the tube and slowly begin to bend it over the switched-on gas stove. As a result, you get the desired shape and the tube will not crack.
  17. Filter for aquarium do it yourself! He blows work no worse than the purchase, and will save a lot of money and space.

Aquarium filter do it yourself

Water in the aquarium should be constantly filtered. This is known to all owners of home decorative fish. In pet stores there is a fairly large selection of aquarium filters of various designs. However, such a device can be made independently of the available material.

Some aquarists believe that it is not worth saving on the fish and the food for them, but you can find a replacement for expensive equipment for the aquarium. Some accessories and accessories, including a water purifier, are quite capable of making with your own hands. Of course, for this you need to know the basic principles of filtration of water, as well as have some skills as a home craftsman.

How to make an internal filter?

What is necessary?

Materials for the simplest internal aquarium filter are commercially available at regular hardware stores. The exception, perhaps, is only a compact electric pump. However, it can be bought in the building hypermarket or in the electrical goods store.

So, for work will be required:

  • plastic container with a tight lid (suitable container for storing bulk products);
  • thick porous material or sponge;
  • hermetic water pump with a fitting for attachment to the lid of the container;
  • ceramic granules or rings for biological filtration (for fine cleaning, simple cotton wool can be used as a filtering element);
  • 2-3 suction cups, adhesive resin.

Operating procedure

  • On the lower edges of the container, thin cuts are made along the entire perimeter. They will serve to absorb the water.
  • Then a sponge for tight cleaning fits tightly into the container, and from above - a material for fine cleaning (cotton wool or biofilter elements).
  • In the lid of the container a hole is cut through the diameter of the pump fitting.
  • Штуцер вставляется в отверстие и герметизируется по окружности смолой или силиконом.
  • На него накручивается сама помпа, которая создаёт компрессию внутри контейнера.
  • В верхней части широкой боковой стороны контейнера крепятся 2 или 3 бытовые присоски.

В принципе, внутренний фильтр готов. The suction cups will securely hold the self-made device on the wall of the container.

Such a filter can also be put directly on the ground. The latter will serve as an additional level of filtering.

If you attach a plastic nozzle with a long tube that goes outside to the outlet of the pump, then it will also be aerated along with water purification.

External aquarium filter do it yourself

What can you do?

Making such a device at home will take more time.

  • As the case you can use a round high plastic canister.
  • If there is none, then a section of a large-diameter plastic garden tube will do. True, the upper and lower covers will have to cut and mount yourself.

Working process

First stage

  • In the lower part of the canister a hole is cut into which a metal or plastic fitting with a one-way inlet valve is screwed tightly.
  • There are 2 holes in the cover: for fixing the water outlet valve and the electropump.
  • The pump itself through the fitting is attached to the inside of the cover.

Second phase

Now you need to make cassettes, or cartridges, with filter elements. They can be made from plastic flower pots, smoothly cutting off the top wide part.

The diameter of such self-made cassettes should be slightly less than the internal diameter of the canister.

At the bottom of each cassette burned holes for the passage of water.

The first cartridge, where the sponge is placed, is inserted into the canister so that its bottom is slightly above the adapter with the inlet valve.

A second cartridge is installed, where the filtering material can be fiber, synthetic winterizer or cotton wool. A filter cartridge with biomaterial is mounted on top so that it is below the pump canister attached to the lid.

If the body of the external filter is made by itself, then its bottom and lid are sealed with silicone or resin.

Third stage

Tubes or hoses are connected to the inlet and outlet adapters with valves. Their length is adjustable depending on the depth of the aquarium and the distance to the filter.

External aquarium water purifier ready.

As in the first case, the working pump creates pressure, under the influence of which the water is first sucked into the canister, passes all filtration stages and then flows back into the aquarium. Before using it is necessary to check the canister for 24 hours for tightness by filling it with water.

The main element of the cleaner is the pump. When choosing it, you should consider the volume of the aquarium. For example: for a 70-liter aquarium, a pump with a capacity of 300 liters per hour is suitable, and for a 200-liter one - 1000 liters per hour.

Instead of conclusion

At home, you can make a bottom filter or, as it is called, false. However, this is a more difficult task, which can be done by real craftsmen.

Quite a large number of owners of aquariums prefer not to spend money on expensive equipment. Aquafilters, diligently made with their own hands, work no worse than expensive branded devices. And the technology and the frequency of their service is the same as in the sold models. In addition, a self-made device has a slightly different moral value. Is not it?

Video on how to properly make an external aquarium filter:

Filter for aquarium do it yourself. How to build a filter for the aquarium: schemes, tips

Before you get the fish, you need to take care of the presence of not only the suitable aquarium, soil, vegetation, some kind of decorative elements, but also a filter. You should understand that this is not only a water purifier, but also an item that is essential for the vital activity of your home aquatic inhabitants. And if you do not have the opportunity to purchase one or another model in the store, you can consider how to make a filter for the aquarium with your own hands.

Importance of aquarium filter

No matter how clean the water in the aquarium you do not fill, it will eventually become dirty. This is due to the appearance of dead algae particles, waste and other small debris in it. In order to get rid of all this and maintain cleanliness in the aquatic environment, it is necessary to install a water filter in the aquarium.

This mechanism has the following functions:

  • purifies water from inorganic particles;
  • removes all sorts of solutes from water (for example, tablets or other drugs after treating aquarium inhabitants);
  • fills water with oxygen, without which no fish can survive;
  • creates water circulation.

Undoubtedly, no fish or other aquatic animals can be launched into any aquarium without a pre-installed filter. But, considering all of the above, it’s still worth remembering, but if you know how to install a filter in an aquarium and have already decided which model to buy, it will not create natural running water for you anyway. After all, each filter pumps the same fluid.

What is the difference between filters?

Before you install the filter in the aquarium, you need to decide on its appearance, installation location and functionality. Indeed, in every specialized store you will encounter a large selection of these devices. All of them differ in design features and applications.

Some do not want to face such a choice and prefer to make a filter for the aquarium with their own hands, simply by examining all the features of the purchased structures and finding out which model is suitable for a particular situation.

Types of Aquarium Filters

According to the principle of operation, modern aquarium filters of the following types are distinguished:

  1. Mechanical able to clean the water in the aquarium from the turbidity and floating particles that were raised from the bottom by the movement of fish and compressor. Without installing such a device is not enough. After all, the dirt in the aquarium gradually accumulates and, as a result, decomposes, making the water turbid. Such a filter should be washed as it is contaminated. The first sign of clogging will be a reduced flow of water through this device.
  2. Chemical filters to a greater degree purify aquarium water from organic matter. They remove phosphates and nitrates. For excellent results, these filters must be periodically changed.
  3. Absorption-chemical filters contribute to the purification of water from the waste of fish and other "animals" of the aquarium. As a rule, such a device includes a constantly circulating pump, a special sponge and a substrate (usually gravel) located directly next to it. It can be installed both inside and outside the aquarium. It should be noted that the main component of each biological filter are nitrifying bacteria, whose vital activity must be maintained without fail. This means that such an external filter for the aquarium should be washed only under running water. And in no case can it be dried.

Types of filters depending on their location

Each filter for an aquarium, photos of which demonstrate not only their appearance, but also the methods of attachment, can be installed in different ways. According to this, according to their location, the following types of these devices are distinguished:

  1. The bottom filter for the aquarium is located almost at the bottom of the tank. It has a large number of holes from which air is supplied. Such filters help to clear water from small contaminations. Manufacturers recommend to install them immediately before the settlement of fish. Otherwise, it will be very difficult to place and fix this type of filter in the aquarium.
  2. The internal filter is installed inside the aquarium (hence its name). As a rule, it consists of a sponge or activated carbon and a pumping device. Such filters clog very quickly. This must be constantly monitored, as the throughput of such a device decreases.
  3. External filters for aquarium is very similar to internal ones. The only difference is the location.

How to make a filter for the aquarium yourself?

A good filtering device will never be cheap. What to do? How to save? In this case, we advise you to make the simplest filter for the aquarium with your own hands. To make it you will need: a sponge (you choose its size depending on the capacity of the aquarium), a nebulizer, a suction cup, a rubber tube, two 20 ml syringes, a small compressor.

Take one syringe. In one part of it, in which the medicine should be taken, make holes with a heated awl. You need to connect the second syringe with the first one. This can be done with spikes. To do this, hold the widest ends on the hot plate for a bit, quickly connect them and hold for 5-7 seconds. Cut from both ends the part into which the needle should be inserted. You should have a long plastic pipe.

Take a sponge, make in one of its sides not a wide, but deep incision, insert into it a part of a syringe with holes. Get into the resulting "tube" rubber tube, connect it to the compressor. Attach a suction cup to one side of the syringe. It will be attached to your filter to the wall of the aquarium.

Is it possible to make a run for the filter aquarium?

No filter can fully clean the water in the aquarium without a pump. The simplest such device can also be made by hand. To do this, you must have at hand: the nozzle, fitting, pump core and tee.

The nozzle can be replaced with a simple pipe. It must be in one of the holes of the tee. After that, take the valve with a thread, screw the fitting on it, and pull the hose from above. On the opposite side, you need to carefully attach a small hose, which will later serve to drain the water. A siphon is put on the end of this hose. It will help protect the pump itself from falling into the ground, which can cause serious damage to the device.

How to install a filter in an aquarium?

So, you bought or made a filter for the aquarium with your own hands. Now what? How to install it? What rules should be followed?

First of all, everyone should understand that in no case should a filter be installed in an empty aquarium. The container should be at least half filled with water. It is also worth noting that before you assemble the filter for the aquarium, all the details of this device must be carefully dried. And only after that, proceed to install it. The filter is usually attached to the wall with suction cups at a distance of 3 cm from the surface and in such a way that it does not touch the bottom. First, it must be submerged in the water off.

The tube that takes in air must be brought out. It is very convenient if a fastening is provided for this tube. In a fixed state, it will not move and fall into the water.

If you understand how to install the filter in the aquarium, and did it correctly, then only now it can be plugged into an outlet. If the filter began to circulate and saturate the water with oxygen, then you should have no doubt that you did something wrong.

How to clean the filter yourself?

In order to clean the aquarium filter, you must first disconnect it from the network. Outside the device is washed from mucus and dirt, carefully "stretch" the sponge in running water. If you have a chemical filter, its filler must be replaced without fail. In the case of acquiring a biological filter, it is worth remembering that it will be more convenient to have several of these devices at once. This makes it easy to clean each of them in turn.

And finally ...

It is mandatory to monitor the operation of your filtering system. She should always work at full strength. If, for example, the bottom filter for an aquarium does not work at full strength, then this is the first sign that this device must be washed and cleaned.

Remember! Improving the care of the aquarium filter comes only with time. In this case, you only need attention and care to your pets.

How to make an external filter for the aquarium do it yourself

External filter do-it-yourself for the aquarium, how to make an external filter

How to make a filter for an aquarium