I have 3 angels at the moment and they are in a 70gal with a big (36 cm) common pleco and a15-18cm black ghost knife.
PH is around 6.5. and soft.
A sward plant of some sort.
Lots of drift wood.
I got a old angel from some people and put it with my other two in the tank, the new one is about 4-5 years old and the ones I got my self are about 10months.
Now the new one has been locking jaws with the pearl scale, flaring fins and they drove the other one to the other side of the tank and started to clean a leaf.
Ok if they breed I am going to take some of the egs to a other tank(25long) and leave some for them.
My plan is to move the pleco to a 42gal for 3months(he lived in this tank for more then 3years) and wen the small angels are big enough bring him back to this tank.
I will feed the fry brine shrimp and tetra baby food.
This is the first time to breed angels so good advise is very help full