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 plantsThe fish are at full size and are only max 2 inches each. The filter is quite powerful as well.

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.

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.

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. =)

at the most 3 or 4 but be carefull on what type of fish you put in there.

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 have them! You could maybe get a couple shrimp, they stay low so your fish would still have room to swim comfortably.

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 urinate in their water (among *ahem* other things ) and controlling ammonia and nitrogen by-products will be more difficult, placing the ones you have in danger. If you find you're hankering for more fish, you're probably ready for a more serious aquarium.

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 to be only grow a maximum of 1 inch, then you only need a 3 gallon tank. Also, you need to consider how big your plants are. Do they take up alot of space? If it's a small plant, then it shouldn't be too big of a deal. However, the bigger the plant, the more I would consider a slightly larger tank.In your specific situation, I would look at purchasing a slightly larger tank. Perhaps a 5 gallon?Hope that helps.

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

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 tank( lets assume there 3-5 inches each) tank, chances are you would fine many dead or dying fish. The rest, aside from the top pair ( or pairs), would be hiding and acting very skittish. All fish have different requirements, so this rule does not work.Anyway, chances are your fish tank is over stocked. Judging buy your description, it sounds like you have danios or tetras. Both should have at least a 5 gallon tank, but a thats the BARE minimum. A ten gallon would be much better for beginners. As for fish that would work , paradise fish and bettas would be fine. Just make sure that the betta has a heater if your home is under 68 degrees allot of the time. The paradise fish would not care if you have a heater or not. Hope this helps!!P.S. Never trust pet store employees. Many of them are just there to work and know very little on fish requirements or are not trained correctly. Even so called specialist can give terrible advice( wether they know its bad advice or not; probably because they do not want to lose there job). Now there are some pet store employees that give good advice, but there are not to many of them.