At first I had a birthing/isolation net in my 10 gallon, but it gets sooo dirty that I decided to set up a little 1 gallon tank. I have to keep a close eye on the water levels though because it is a little tank lots can go wrong in a short amount of time.
Anyway, I have the bottom plain so that it is easier to clean and 1 plant in there for some type of shelter. A small heater and a small bubble filter. I use bubble for the fry because I can control how strong the current is and the babies are less likely to get sucked up. If they do get sucked up they are typically okay. I check the filter with a flashlight everyday to see if there are in babies inside of it. They have fry food that is like a very fine powder, or you can smush the food you feed to the parents into a powder to feed them.
Everything I have read says to feed them a very small amount a few times a day. Also, I read somewhere that they should receive 18 hours of light a day to help them grow. Mine definitely did not receive that much and I already have some back in the big 10 gallon tank because they are too big to be eaten and are strong enough to escape the current from the filter.
I'd say the most important thing to do is make sure they have clean fresh water as that will be the biggest culprit in killing off fry.
Also a tip.. I let my adults have their fry in the main part of the tank (less stress on them than catching them in a breeder container) and then suck them up with a turkey baster! It works great! Even at 3 months I can get them with the baster to move them around if need be.
