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How many fish can i fit in a 2 gallon tank?

I already have three small fish in there. I'm not sure what kind they are but on the description at the petstore it mentioned that they are best in large groups and are "hearty" fish. The tank has a filter in it as well as two small plants The fish are at full size and are only max 2 inches each. The filter is quite powerful as well.

Asked By: Nicole - 12/28/2009
Best Answer - Chosen by Asker
Ok, there are some mix ups here. First of all, the one inch of fish per gallon rule does not work. For example, a ten inch oscar can not go in a ten gallon tank. However, 20 neon tetras can go in a ten gallon tank. Also, some fish are territorial, like many cichlids. So if you put 40 inches of cichlids in a 40 gallon... More
Answered By: fish man+ - 12/29/2009
Additional Answers (8)
The general rule of thumb is one fish per gallon. I wouldn't put any more in than that. You'll begin to have problems in the health of your fish.
Answered By: Amy G - 12/28/2009
 
You can "Fit" dozens of small fish in a 2 gallon tank...but your filter won't be able to keep the tank & PH levels clean. How large are the 3 small fish capable of growing? Your 2 gallon tank will need to be upgraded shortly to a larger tank to accommodate the size of your fish too.
Answered By: Tigerbabe - 12/28/2009
 
As the petstore had mentioned, it sounds as very small group fishes, and i think at the most u could probably fit 2 or 3 of each of them are about 1 inch..which is the general/common "1 inch rule" Hope i helped. =)
Source(s):
Answered By: Joey W - 12/28/2009
 
at the most 3 or 4 but be carefull on what type of fish you put in there.
Answered By: kittencute987 - 12/28/2009
 
Hmm...I have a 5 gallon tank that has 2 Bumblebee Gobys, a small Algae Eater, and a Dwarf Honey Gourami. Sure, I could fit more fish in there but they wouldn't be as comfortable. I suggest getting some snails because they don't take up much room at all and you don't have to buy them food. All pet stores that sell fish... More
Answered By: Alaska Grown♥ - 12/28/2009
 
Three is good for fish growing to 2 inches. Small fish prefer large schools for safety but if your tank is a safe tank for everyone - i.e., no one is bullied - they should be fine in a small group. Remember, the ones you have will grow. Too many fish may make the tank look fuller, but they u*****e in their water (... More
Answered By: K - 12/28/2009
 
In my experience, it has always been 1 inch of fish per gallon, no matter what kind of fish. So when purchasing a tank for your fish, or a fish for your tank, you should always keep in mind how large your fish will be in it's ADULT form and that should help guide you. Therefore, if you have 3 fish and they're expected... More
Answered By: BazookaTooth - 12/29/2009
 
you already have too many fish. the ONLY fish you can keep in there would be a single male betta. and even that would be a bit of a squeeze
Answered By: SuperDuperMan - 12/29/2009
 
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