I have had fry now for a month in my 33long. I only have nine. I guess she either ate the rest or had a small group. Now those nine are growing just fine and have left them in my display tank. They graze on algae and eat flakes like their mom. I just hope I can get them out before they have their own kids
They do need an established tank with good filtration and heat to survive. My suggestion would be to let them grow a while and either set up another small tank for them as they grow or catch them and take them to a pet store.