How many fishes can I put in a 25 gallons aquarium?

Question

They would mainly be tetras

Answer 1

Depends on the size of the tetras, as some are bigger than others. Congo tetras, for example, can grow to 3" long. But I'm going to assume that you mean the smaller tetras like neons, glowlights, etc.
Anyway, you could have ONE school of 15 tetras like:
neon tetras http://img225.exs.cx/img225/3290/neontetra6mc.jpg
cardinal tetra http://www.thetropicaltank.co.uk/Fishindx/Fishpics/cardinals.jpg
lemon tetra http://www.aqua-fish.net/imgs/fish/034.jpg
harlequin rasbora http://tropicalresources.net/phpBB2/templates/BMan1Blue/images/profile_pics/fish_profiles_heteromorpha1.jpg
glowlight tetra http://www.solodvds.com/images/fish/Hemigrammus_erythrozonus_s.jpg
zebra danio http://www.winternet.com/~mchristi/fish/zebradanio.jpg

Or two schools of 8. Note that different types of tetras will NOT school together.

Tetras are mainly mid-level dwellers, and don't spend much time at the top or bottom of the aquarium, so you want to stock those regions with something else. At the bottom, you could put a school of 5 or 6 corydoras: http://www.thekrib.com/Plants/People/h-Cory-julii.jpg
OR a pair of kribensis cichlids:
http://www.cichlids.dk/thumb/28887.jpg

And for the top, either a male betta or a dwarf gourami:
http://www.biol.s.u-tokyo.ac.jp/users/naibunpi/Image/Gourami-photo-old.jpg


And above all, before you buy anything, go to your local fish store, take a look around and write down the various fish you like. Then come home, research them, ask questions about them, before buying them.

And if your tank is not cycled yet, please read up on the Fishtank Nitrogen Cycle (google it for plenty of invaluable info)

Answer 2

Well many people use the one inch of fish per gallon method. This is fine provided the adult size of the fish is one inch. More conservative people use the one inch of fish per two gallons. I like to use a squared system. Using this system with your tank you could choose one of the following

25 1 inch fish
11 1.5 inch fish
6 2 inch fish
3 3 inch fish
2 4 inch fish
1 5 inch fish

you could also get away with one 6 inch or one 7 inch, but that isn't really the best for the fish. 8 inch and above fish are out of the question.

Answer 3

The rule of thumb with fishtanks is:

1 inch of fish per gallon in tank.

Which means if your ADULT tetras are 2 inches a piece, then you can put up to 12 in a 25 gallon tank. Hope this helps

Answer 4

A Betta is continuously an noticeably exceptionally fish, yet which will decrease your tank mate determination dramatically. I continuously propose getting a Pleco and a Cory cat when you consider that they are solid clen up crews and also you may get them in a technique of hues and such. Neon Tetras are continuously relaxing, yet they don't continuously do nicely with bettas. i information a colourful betta and a short finned minor tetra or lampeye tetra, a pleco, a cory, and perchance another style of bottom feeder alongside with catfish. Platys are also colourful and that i believe they do nicely with bettas. Clown Loaches are relaxing too (i respect mine) yet you'll eed to get a higher tank at the same time as they become old, so i do not propose them except you opt for to improve.

Answer 5

the general rule of thumb is 1 inch of fish per gallon-remember that your fish will be about 1 to 1 1/2 inches long fully grown, so for full comfort for your pets, i'd say about 20, that way the have room to grow, but you get a really nice schooling effect-especially if you choose all the same breed of tetra

Answer 6

13

Answer 7

Rule of thumb is about 1 inch of fish per gallon.

So depending on the type tetra you could probably have 25 to 30 easily (basing this on neon tetras)

Answer 8

Hi there!

It depends on how large the fish get. Most of the time when you buy fish from a pet store they are babies, and tend to grow larger. Your best bet would be to go to Petsmart or Petco and talk to someone in the fish department. Ask them to help you find the right fish for your tank. Also, make sure all of the fish you do buy are compatible with each other---all fresh water, all salt water, all semi-agressive, all non-agressive etc. The person you'd talk to in the fish department will give you advice on pairing fish, too. Hope this helps!! :)

Answer 9

It depends on what fish you want. You can do about 20 neons in that tank, as long as they are the only fish in the tank. But some tetras, like black skirts are bigger and you could only do 6-8. If you want other fish, the number varies depending on what fish you put with them.

Answer 10

It depends on the type of fish but if you are going to have platys, tetras, guppies, and barbs, I say 6-7 of them. Bettas are good too but you can keep bettas with barbs and tetras. Goldfish, the non fan tail type are good too. If you have the fantail type, I'd say 2-3 max. There are also freshwater puffer fish and african dwarf frogs which would be nice.