I have a bunch of baby mollies from several different mothers, from 2 months to a few days old. They all look like females, don't have any distinguishing shapes yet --such as lyretail or balloon-belly. Many of them were from balloon-belly mothers. When does the gender (male shape) show up, and the lyretail, balloon-belly, sailfin, etc. shape? Also does a balloon-belly mother need to mate with a balloon-belly male to have that shape in the baby (regressive?)? None of the babies have her shape. Also, other than black and dalmatian B&W babies, they don't have much color either. That seems to develop slowly, and at around 2 months, the gold dust starts to show up. Silver, gold, and pale others are not distinguishable yet. Thank you.