Hi, I just got back from vacation.
Input, here we go I will go in a list since I think better that way---
Your water conditions are perfectly fine as long as the juveniles you buy are tank raised in "normal" tap water. If you need a breeder, I have a GREAT one.
I would never put juveniles in with Angels. Babies need to grow confidence and it seems to take forever. The Angels will end up getting all the food and (perhaps) terrorizing your babies.
You will need to raise the temperature on your tank considerably---82 would be the absolute minimum, with 84 to 86 being the temp at which I see the most success.
As for the tank itself, I would remove as much of that bulky rock as possible and leave the driftwood and plants. Babies tend to spook easily and WILL bang themselves if the tank is too crowded. Not to mention that since you want perfect water for growth, that stuff (pretty as it is) is displacing too much water.
I have experimented, and here's the stocking level that keeps everybody the healthiest--
A minimum of 14 gallons per Discus (more like 16 each if one of them grows up to be a giant male instead of a normal sized male--which has happened to me twice. The really big males are positively evil
and will bully the whole tank unless everyone has more room)
with an 80 % water change every 7 to 10 days.
Did I miss anything?
let me know what you decide to do, I am a diehard Discus fan.
I sold off some in order to keep my stocking levels decent, but still have 24 of them...
OH, one more thing. 2 Discus or 4 or more but not three. I have learned that the hard way, as they grow up, they become your average nasty cichlid and will gang up on a 3rd one