Hi there, I wanted to make sure that I am doing every thing properly to get my 2 balloon mollies living in a safe environment. As of right now, they are living in a 2 gallon tank. I understand that this is not ideal living conditions for them, but I bought them before I completely understood what kind of home they needed. I live in an apartment that doesn't allow any pets whatsoever, so getting the 20 gal. tank is out of the question until I move back home in May. Through this forum I was told that I should use prime water conditioner and do 50% water changes daily. (Also to purchase the API mater test kit to test the water.) The way I understood it was that by using Prime and doing the 50% water changes daily was a way to start the nitrogen cycle. Please correct me if I am wrong!! As of last night every thing has been on the chart, except the ammonia, which was .25ppm. Should I be using any products to adjust the pH and whatnot, to get my levels where they need to be? Also, I am using a penn-plax small world filter. I replaced the filter on the 4th, and the white sponge is almost completely brown. It is recommended on the box to change the filter every 2-4 weeks. Should I be changing the filter more often since their tank is too small for the fish?