Hi, my name is Liz, very new to this, not sure what I am doing at the moment, I have a number of questions I would like to ask : I will just start with one until I can get the hang of it. I have a community tank with mostly mollies of different kinds, ie. black, silver, dalmatian etc., can you tell me do they inter breed with each other, and how many fry do they produce, I have only 4 young fish about a month old, how often would I expect young fish ?