Do female fish cycle like most other creatures or are they always available and ready even if they are very pregnant? I have a very pg platy and molly. I thought I only had one male molly, but today I found out the other platy is obviously a male. The molly is hot after the pg molly as is the male platy after the pg platy. I am assuming they are trying to breed because both their gonopodiums are very obvious. Do they continue to breed even when they are heavy with fry? Also is there some ritualistic thing they do? Both males keep pushing with their nose where I am sure their gonopodium is suppose to go and I actually wondered if they were just trying to eat the fry as they were born. Although I have spent a lot of time just watching, I have not seen them get into any position where penetration could occur. I am assuming they would have to be belly to belly and tail to nose. I would have put this in the breeding forum, but it doesn't seem to get much activity.