Welcome to the hobby :) Mollies are a great choice for first fish. I had them too and when they started breeding first, it really caught my interest in fish keeping
I have 3 albinos (2 male & 1 female) I feed mine blood worms and Live artemia. Works pretty well. A few extra 10% water changes and they breed like crazy. That being said mine are in a species tank so breeding in more optimal in my case. As for after they spawn, seangee is 100% :good::good: