What kind of fish can go in a one gallon tank? And how many?

Answer 1

None, really. All fish need a certain amount of swimming room, oxygenation and cleanliness. You also not cycle a 1 gallon tank, or provide adequate heating or filtration.

I suggest you get a 5 gallon tank. You can get a smaller heater, and a small filter, and the whole thing will probably cost you less than 30$ and it won't take up very much room. In a 5 gallon, you could comfortable house 1 betta, OR 2 african dwarf frogs, OR 2 killifish, OR 3 red cloud minnows. And/or some shrimp.

In a 1 gallon, you could get away with keeping a betta, if:
- your room is warm. Bettas need 76-80F water to thrive - put it near a lamp to extra warmth.
- you change the water frequently. Like all fish, bettas produce ammonia, and without filtration, the toxic ammonia just builds up. I suggest using a clean turkey baster and sucking out half the water, along with uneaten food and poop, every other day, and replacing it with fresh clean water.
- you are aware that you are shortening your fish's lifespan and increasing the risk of finrot, dropsy, ich, fungus, etc.

Anyway, you can get away with it with a Betta, if you are dilligent with your cleaning schedule... but you can also go a little bigger :)

Answer 2

Bettas or guppies if done correctly. I used to have a 1g bowl with small UGF and 6W micro heater, plants and a few guppies, they did very well in this however you do need to keep up with maintainance as 1g of water can turn 'sour' pretty quickly if a mistake is made or one has a habit of overfeeding.

Perhaps a single betta may be the best choice, specially if one is relatively new to fishkeeping. The betta is usually fine in room temperature so it simplifies things a lot.

There are many examples of nano tanks in this size range, such as planted nanos with a couple shrimp or small rasboras, but they can be challenging even for an experienced aquarist.

If you can, take a look at slightly larger tanks, my betta has been in a planted 2.5g for 2 years now with a nano power filter, I really like the tank. Here's a picture of it (the betta is in there somewhere):
http://www.gpodio.com/posts/2gal.jpg

Hope that helps

Answer 3

Not many.

But you can have a happy and healthy betta fish (one only) in a 1 gallon tank.
Paradise fish also can be kept in small aquariums as they are labyrinth fish too (they have the ability like bettas to obtain oxygen from the air).

Water quality is important here, if possible a sponge filter is great for bettas or paradise fish, and they are small and great for bio filtration and will not damage the betta’s fins. I recommend the Hydro Sponge; it has a vastly more porous sponge media. If a filter is not possible or even if you have one the small Wonder Shells are are excellent for water clarity, kH and electrolytes.

For heat, infrared reptile lamps works best as this can be left on all night and not disturb the rest patterns of the fish.

Make sure to feed a high quality diet that will not pollute such as Sanyu or Hikari Betta Gold.

For more about this subject, see my ezine article:
http://ezinearticles.com/?Betta-Care,-Feeding,-Filtration,-and-More&id=363205

Answer 4

A betta fish.

Don't put goldfish in that tank. They are dirty fish that need filtration and space. They will likely die very quickly.

Answer 5

A betta with other fish or two female bettas. or gold fish

Answer 6

One Betta

Answer 7

first of all, u might want to consider the fishes' happiness, which will also affect its' lifespan. If u are posotive about getting a fish, and putting it in that small of a tank, i would reccomend two of the smaller sized goldfish. do not get the large sized, because they would not fit. i reccomend the goldfish because u sound like a firs time owner, and goldfish are fairly easy to care for. getting two is important because fish are somewhat social animals, and they will most likely want a buddy. Good luck!!!

Answer 8

it is suppose to be one inch of fish per gallon. I would only put like one fish in there. Beta fish are cool, they are very colorful and easy maintenece.

Answer 9

An Kind of fish.