Okay! hatching tanks!
I'll take a 5g or 10g and put in a seeded sponge filter and a clump of java moss..either floating with the wine cork or just let loose on the bottom. (there is a reason for the moss...lol) Then of course a heater (try to keep right around 80-82 if you can) Now if it's a 10g, the babies can stay a tiny bit longer in there, so I'll also add a rear filter with a sponge over the intake tube. make it so no big particles can get into that tube, but I don't leave mine on...more on that too.
Okay, noec your parents have laid their eggs and they are totally done, then I take a pitcher or very large cup and put whatever the eggs were laid on into that cup (never take out of water! eggs cannot be put to air for even a second) now warning, parents will not like you in their tank with the eggs. they will like even less you taking the eggs out. be prepared for many attacks on your hand. I have one male that actually hurts me a tiny bit (scares the heck out of me each time too!) when he attacks me, so for him I grab a net and keep him on one side of the tank while I'm getting the eggs.
once you have the eggs out, put them in the prepared hatching tank again not letting them touch air. I put them in at an angle just like it was in the parents tank. if it's a leaf, I let it float (plastic ones work great for this). put an air bubbler on low (kink the tube if need be) so bubble go within an inch or so of the eggs, but not right on them. Then you wait.
no worries, some of the eggs will turn white and get a fuzzy grossness to them. I don't use any chems in my hatching tanks and so far haven't had any problems not doing so.
once the eggs hatch (3-4 days) you'll see the egg with a tail and tiny movements. wait a few more days till they are a bit more formed. Then I take a medicine dropper (like the kind you can get in infant meds...but clean of course) and I suck the wigglers off the slate/leaf/floor if they fell and squirt them into the javamoss. Try to get as little of the white eggs as you can, jsut the babies. This takes time but is worth it in the end. once all the babies are hanging in the moss, then I take out the slate, clean it good and put it back in the parent's tank. Then I take an air tube and suction into a clean bucket any grossness that's on the floor of the tank. (their first water change) make sure to take a long good look into the bottom of that bucket and med dropper any fry you may have sucked up (I do nearly all the time) squirt them back into the javamoss.
in about 7 days or so (sometimes not that long, depends on heat) they will go free swimming. now there's a number of ways that you can do feeding. 99% of breeders have baby brine shrimp hatched and ready to feed. do so! I personally haven't done this as I've got too many and too few bbs. so I've changed to microworms/decaps bbs (you can get on ebay) and a fry powder that I got from
Angelfish an awesome site! I feed these foods to all my fry, no matter what kind of fish they are and so far, it's worked great! Just watch it with the micros as they sink to the bottom and then the fry will want to always be on the bottom which is not good (learned this the hard way) their vents will go all weird or not be there at all if they are on the bottom to much. This is also the time that I put in snails or little tiny catfish (like th habrosus) or shrimp. These will keep the bottom clean and keep the fry up off the bottom. feed in bits several times a day and try to do water changes at least once every other day if not every day.
Now another lesson I learned the hard way... right when the babies are starting to show their angel fins and not look like every other fry in the book, you need to move them out of the 5 or 10g. generally at about a month old. this is when it's good to have a grow out tank anything bigger than a 30 will do depending on how many fry you've got. I use 30s and 55s. once they have moved into this tank I also add to their feedings froz daphnia and cyclops...sit back and watch the frenzy feeding!!!
once they are of dime size, it's good to add froz bloodworm and stuff and things.
far as I can think, that's a good start for you

Good luck and provide many pictures of your journey!!!