i bought a freidn of mine a 2 gallon and id liek to put 2 male guppies in there do you think thats all right ? and also the water is all was freezing .. what can i do to make it warmer is there any heaters for a 2 gallon ? thanks in advance davey
A couple points: two male guppies will harass each other unless there's a female in there. If you put in only one female, the males will wear her out. How about one male and two females, or two males and three females? I think you could get away with that number in a two-gallon, if you do water changes regularly.
Another option: put in a pair of paradise fish. They don't require warm water, and they're nice, colorful fish.
As for heaters, I don't know of one small enough for a two-gallon. Perhaps others will know of some.
Do you have filtration? And you know about cycling in a new tank, right? If not, ask!