I've been reading this forum for about a week and it seems like a friendly and helpful place, so I joined.
I just bought a 20 gallon freshwater for my daughter who is 2 1/2 and loves fish. Unfortunately I rushed into it without doing my research first, but my tank and 5 platys are doing alright. The tank is cycling, my water is within tolerances and my fish seem healthy. I lost one Platy, but he didn't seem healthy from the first day. I used BIO-Spira after I found out that I rushed things and my tank is 3 weeks ahead of schedule... according to water testing and what I've read. I know I'm not out of the woods yet, but it's a better start than what I thought would happen.