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Jan 09

Nano fish in a nano aquarium

The Nano Fish Aquarium: Benefits, Drawbacks, And Guidelines For Use

15 litre nano tank

15 litre nano tank

There are a number of reasons why newcomers and experienced aquarists alike may find themselves interested in purchasing and keeping a nano fish aquarium. It is like the aquarium keeper’s version of bonsai. The small size of these aquariums, generally 56 litres or less, make them ideal for a variety of environments where keeping a large fish tank is out of the question.

These nano aquariums are a very attractive choice for people who would like to keep a small number of fish in their bedroom. Other possible locations include offices and other commercial settings where the presence of a small fish tank can add a pleasant, lively atmosphere. In these situations, it may not be possible to dedicate much space to the fish tank, making the nano fish aquarium a very convenient option.

While there are certain aquarists who claim that nano aquariums do not represent a healthy habitat for fish, the truth is that if they are set up and cared for properly, they can harbour an ideal environment. These smaller tanks offer a number of advantages that makes fishkeeping a hobby that is available for everyone.

Benefits of Nano Fish Tanks

chili rasbora

chili rasbora

• Nano aquariums tend to be much less expensive than their larger counterparts, allowing nearly anyone to keep them.

• Their small size ensures that you can find space for them anywhere, and in many cases it is possible to keep several of them without issue.

• Aquariums are often excluded from the, “no pets” rules common to small flats and college dormitories. A nano fish aquarium can be a convenient way to circumvent those rules.

• With their small size they are lighter and can be placed almost anywhere. On an office desk for example.
These can serve to make these tanks very attractive for many beginning aquarists, but the pros must be balanced with the cons of keeping such a small tank, as well.

ember tetra

ember tetra

Drawbacks To Keeping A Nano Fish Tank

• Very small aquariums are more susceptible to dramatic changes in water quality due to the much lower volume of water present.

• If a problem with water quality develops, it can turn fatal for the fish very quickly— sometimes within hours.

• Since nano fish tanks are more sensitive to changes in temperature and water chemistry, they require a stricter approach to monitoring water conditions and performing water changes.

• Your fish choices are somewhat limited by the smaller space afforded by a nano fish aquarium. Only small, non-territorial fish should be included in a tank of this size.

jelly bean tetra

jelly bean tetra

Choosing Fish For Your Nano Fish Aquarium

As with any aquarium, you should base your decisions around which fish you would like to keep. It is necessary to select small, peaceful fish who will get along with one another, since it is unlikely that there will be enough room for territorial fish to feel comfortable in. Also smaller fish because of their small size tend to be shoaling fish which you might want to avoid.
There are quite a few species of fish that are small enough to be kept happily in a nano fish aquarium, although it is necessary to consider the combinations of species carefully in order to be sure that they are all compatible with one another—especially when sharing such a tiny space.
You must take into account that most smaller species are shoaling fish. If you want several different species rather than a shoal of 1 species then you need to find non-shoaling fish.

pygmy sunfish

pygmy sunfish

This is a recommended list of small tropical fish that you should choose from:

best nano aquarium fish

• Dwarf rasbora,
• Chili rasbora,
• Tetras (glowlight, rosy, red phantom, jelly bean, or neon),
• Splendid Dwarf Gourami,
• Threadfin Rainbow Fish,
• Lamp Eye,
• Clown Killifish,
• Dwarf Croaking Gourami,

norman's lamp eye fish

norman’s lamp eye fish

• Dwarf Driftwood Catfish,
• Dwarf Ornate Bagrid,
• Dwarf Corydoras,
• Aspidoras Pauciradiatus,
• Marbled Otocinclus,
• Upside Down Catfish,
• Carnegies livebearer,
• Slender Pygmy Swordtail,
• Pygmy Sunfish.

There may be other species available to you at your local aquarist or online and you should certainly investigate all possibilities.

pygmy swordtail

pygmy swordtail

As a quick look at this list will clearly show, a great number of these species are of the dwarf- or pygmy- variety. This is an important distinction since the small space effectively limits the size and number of fish you can keep.

Many of these fish, such as neon tetras and dwarf corydoras, are schooling fish. If you plan on keeping a schooling fish in your mini tank, you will have to make room for 6-8 individuals, which can quickly fill up your tank space, making it more difficult to express variety in your choices of fish.

Another issue that you are advised to take into account include the hardiness of the species and how social individual members of that species generally act—shy fish can have a hard time in small tanks unless you opt for a single species tank.

two male sparkling gouramis posturing

two male sparkling gouramis posturing

Select the combination of species that you think will offer you the most striking, colourful and beautiful nano tank that you can keep. But take into consideration: the preferred depths of your fish.

Your fish should be selected not only according to their colour, size, and compatibility, but also according to their most comfortable zone of depth. It is a well-known fact that catfish tend to inhabit the aquarium floor, for example. If you combine these fish with other species that prefer the surface or centre of the tank, you should enjoy less conflict in your tank than you would otherwise. When the fish fully occupy the full depth of the aquarium, it adds interest.

How To Take Care Of Your Nano Fish Aquarium Successfully

The secret is to scale down everything in proportion. This includes the fish, mini-species should predominate. Also the viewing distance must be reduced. Mini aquariums can be quite fascinating when viewed from close up. The plants also must be the mini varieties so that you can several different plants with different colours, leaves and textures. Filter speeds have to be scaled down too. However, you need to scale up your monitoring of the water conditions. A test kit is vital and should be checked more often than a large aquarium.

Once you are sure what species of fish you would like to keep, you will need to consider aquarium placement: In general, it is important to keep your aquarium out of direct sunlight. An algae bloom could prove to be devastating, so it is best to choose a comfortable indoors area such as the bedroom for your nano fish aquarium and let your aquarium light do its job.

A sponge filter is one of the best options for very small fish tanks, they tend to be small and offer enough filtration to handle the needs of the small volume of water that the tank holds. An air pump is highly recommended as well, although you will want to make sure you do not create too much turbulence in the water.

Water changes for small aquariums should be performed once or even twice a week. The small size of the aquarium means that you can complete your entire water changing procedure in only a minute or two, but skipping a change can have disastrous results, so be sure to remain vigilant and schedule your changes with care.

Plant And Lighting Considerations For Your Nano Fish Aquarium

Naturally, you will want to decorate your nano tank, and while live plants may seem like too much trouble to go through for such a small tank, they are can make very beautiful additions that also help keep the nitrogen cycle balanced properly. Java moss is an excellent choice since it is hardy, decorative, and easily cared for. Also floating plants can also add some low maintenance plant life to the mini aquarium.

If you choose to include a live plant in your nano setup, you will need to provide it with an adequate light source. Thankfully, small actinic bulbs are widely available online and in aquarium supply stores. You may not have room for more than a single plant, but it can be a great help in keeping your tiny aquarium healthy.

Buyer’s Beware: Nano Tanks To Be Avoided

Nano aquarists will find a number of nano tanks advertised that are under 5 litres and marketed as, “closed”, “low maintenance” or “no maintenance” aquariums. These products are generally fraudulent they cannot sustain healthy fish for long.

Also avoid tanks that are too small to accommodate a heater or filter. Trying to keep fish alive and healthy without the use of these important tools is asking for trouble.

In general, you should choose tanks and tools from brands that you trust. Low quality nano aquariums will inevitably lead to problems later on. If you choose a trustworthy brand that is known for making professional-quality equipment for your nano fish aquarium, you will rest easier knowing that your fish are in safe hands.

Finally, when you have carefully followed the above steps, you will be ready to sit back and enjoy what might turn out to be a fascinating nano spectacle in your home or office.

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