You could carefully take the babies out and put them in a tank that is just for them. I have a tank set up just for the babies and when I see a baby in the 55 gallon, I use a cup to get it out instead of a net. It is so small that it would either go right through the net or I wouild lose it cause it would stick to the net, so using a cup for me insures that it doesn't get hurt or touched by anything.

You could read up on what they should eat, usually tropical fish will eat the liquid or power food for tropical fry and you can get it for a cheap price at wal-mart or a petstore. But if there is only three that you can see, then alot of them have probably already been aten. Also my fish had eggs so it was easier to get them into another tank too, I just took the plants that had lots of eggs on them and put them into the baby tank to hatch

Good luck with whatever you decide to do