I have guppy fry in my 55 gal. community tank and it is well planted and has floating plants also. I figure some will survive and some won't. That's ok as the Guppies are called the million fish for a reason. Fry babies every month of 20-60 or more for each female. I don't mind if my Angelfish snacks on some of them. I can't keep them all and your bigger fish will be good at keeping the numbers down making keeping the tank clean and in check. The baby guppies will take about 3 months or more to sale or get credit from any LFS. Craigslist is a good place to rehome extra fishys.