The mollies are what I am most concerned about. One is yellow with kind of iridescent spots. The other is larger and has a yellow color with orangish and black spots. This one seems to be dominate over the other it seems that it chases yellow one about until she feels satisfied about her position in the tank. I am not sure if they are both female and I don’t know if they are okay where they are now they seem to be fine i think except for the chasing between the two mollies I think they both might be female , and that is okay for now I suppose. Later today I should be going out and getting some new fish and my friend is giving me another ten-twenty gallon tank. I broke the first one he gave me within the hour of getting it, I dropped it in the sink while trying to clean the hard water out of it. Well I need to know what to put in this new tank. Currently I have rocks, one fake plant, an air pump, and a thermometer. I g