So I bought 3 platy fish a while back and they were all pregnant. My black skirt tetras didn't get enough of the fry. I have a 30g and a 20g but I don't think that's enough. They are pretty big now and swimming with the adults. Don't want to flush them. I'm doing 10% water changers on both tanks every few days and cleaning the gravel. So far the water testing is coming out good. I have a 50 and a 70 aquaclear and a uv sterilizer running in the 30g. It's stocked with 6 long finned black skirts, 4 platty and 2 Cory, and now probably 30 platty fry between both tanks. Anybody found themselves in this situation? I feel a disaster coming.