I can give you some tips
If you really want to see them angels drop some eggs this is how I would do it:
1. Limit the tank to just your paired angels
2. Feed live food or if not available frozen blood worms
3. Set the tank to the proper temp (79-82 F) I used 80 F
4. PH, never bothered with it. Angels seem to acclimate to your PH
5. Create a smooth spawning site from white PVC pipe
2 1 1/4" T connectors
1 1 1/2" piece of striaght pipe (about 1' long, one end should have a joint connector)
Small tube of tank cement/silicone
What you do here is take the long piece's joint end and cement it into a T connector to make a permanent T shaped piece. Get a long strip of flat thin plastic or material that doesn't bend much just long enough to sit on the inner lip of the tank. Slide that through the large T piece you made and hang in the tank. So the T piece you made is hanging for the top of the water down into the tank. Save extra T connector for later.
6. Limit other spawning sites, like remove anything they might use as an egg site that you can't remove from tank later. Just mainly anything high, big, and smooth...sometimes they'll choose the glass of filter anyway. Bare tank is best but usually you can only have so many tanks and one should always be decorated well.
7. Add Tetra Blackwater Extract as directed on the label, turns your water a bownish color but this is what will trigger the angels to actually lay some eggs. DON'T USE CARBON, carbon will suck all the extract out of the water and you want it in there. If they don't start spawning in a week, you might want to change up the ammount of time your tank is lighted (like a seasonal light change).
8. Hopefully now that you limited the spawning sites and provided your own, feed your angels good food, and set the mood with the temp and water they will pick that T pipe for a spawning site.
9. When they do lay the eggs on the pipe, let them keep the pipe a whole 24 hours from when they start laying to make sure they are done. They don't usually turn on the eggs until they beent there a while, older pairs may even raises the eggs all the way but you get better results if you adopt them and raise yourself.
10. Remove the T pipe, slap on the the extra joint connector to make and H out of the T pipe. Put that in a seperate tank with the same water conditions (Blackwater extract is not needed there). Tank should be bare with just a heater, sponge filter, and an air stone near the pipe with the eggs. Reason for the new t-connector is that with it added and now looking like an "H" the whole setup with sit on the tank bottom freely without letting the eggs touch anything.
11. Just leave the eggs on the pipe with aeration and soon they will hatch, if you are really worried the eggs might get fungus add some malechite blue to the water. I never really needed this, the aeration is usually enough.
12. Eggs hatch, feed them 2 times a day with frozen baby brine shrimp, powdered baby food for egg layers, or hatch some brine shrimp yourself. Don't stress here, the powered baby food is usually enough for personal results...you really don't need 200 surviving babies do you? With personal breeding only the strong shoudl survive and those to tiny to eat larger food don't deserve to make it unless you really want to become a brine shrimp farmer.
13. Water changes daily in your baby tank, do 10% and make sure you get out what food they don't eat cuz they'll never eat it all.
14. Cull, when the babies get bigger you'll need to selectively remove fish choose carefully. Any abnormal fish should go.
15. Take the last 20-25 to the pet store saving yourself the best 2-3 for your display tank or future breeding with non-related fish. Store credit for good angels is prime money, when I had my angels breeding I hardly ever paid for any supplies and got some really good hardware for my trade ins.
