Vinnie,
Are you saying that you are trying to breed a pair of wild angels? If so, then you should use soft acid water. I am assuming they are P. scalare. Visit
www.finarama.com for much information about breeding wild angels.
Corydoras habrosus would suffer if kept with a mated pair of angels. Some may even be killed.
I regularly breed Corydoras habrosus. One of the easiest ways to breed them is to fill a five gal tank with Ceratophyllum submersum supplied with a sponge filter. I would try 76*F for their spawning tank. Leave the breeders in the tank seven days then remove them. Corydoras habrosus fry will begin appearing on the 5TH or 6TH days and then more each day for about a week after the last day the breeders were removed. Then remove much of the Ceratophyllum and be careful to shake it out as you gradually remove the excess plants. Leave some plants, it helps the fry if they can easily hide and the additional surfaces of the plants help provide some of their first microscopic foods.
I use chilled bbs rather than microworms as their first, then primary food. It is also useful in conditioning the breeders but I would also feed black worms.
C. habrosus tend to lay large eggs for their size but not very many compared to the larger Corys. Still, I would expect 25 to 50 fry depending on how many breeders you used. Males tend to be no more than 2/3 the size of the females and females are broader at the the pectoral fins than the more streamlined males. Two males per female is a good ratio.
Avid Trout fly fisherman. ·´¯`·...¸><)))º>