I use a 10 gallon for the mom's and fry. I put a pot in it for the mom while she is holding, so she can hide out in it. I also make a small stack of rocks for her to spit her fry in. All that is in the tank is the terra cotta pot, 3 small rocks stacked up and a fake plant in the corner. I catch her after she held about a week, that way she is less likely to drop them. I then let her alone in the 10 gallon until she spits. No need to try to feed her, she wont eat. Mine hold for 21 days, all of them almost on the day! So, I will start to look for fry about that time. You will see one or two a couple days before that. I call these the escapee's LOL. Then she will slowly let the others out. Some of my mom's will spit the fry in a fake plant, some in the rock pile. Each is different. Once I suspect she has let them all go I will drop a pellet in. If she eats it she is done. I will then leave her in there for a day while I feed her a pellet or two every couple hours. They are very hungry and weak when done. After that I put her back in the main tank.
For fry I just crumble up flake food in my palm until its almost powder. Kristen is right, some are bigger than others. My Red Zebra fry are always twice as big as my Yellow Lab and Acei fry. They all do fine on the crushed flakes. It is the same food I feed the adults, just crushed up good. I always have so many fry that I saved an old flake food jar and filled it with crushed up flakes. That way I don't have to do it every feeding. I feed my fry 2 times a day, a little pinch each time. You will know they are eating good because their tummies will get FAT!
Breeder nets that hang in the main tank is not a good idea with Afriacan Cichlids or Angel fish. They can and will suck the fry right thru the sides and bottom until there is none left. If you set up a 10 gallon for them, they can stay in it until they get big enough to sell or trade. Just keep up on the water changes and vacuum up the left over foods.