Hi Marc,
I am breeding mine in a planted 29G kept at 80F, ph 7.6, municipal tap water conditioned with NovAqua+. I have an Emporer 280 HOB on the tank which provides more than enough flow, I usually have to slow it down a bit. I keep 6 albino cories in the tank as well as many ramshorns to help clean up the extra baby food. I wouldn't recommend keeping anything else in the tank, my cories are full grown 3". The male pleco gets quite nasty towards tank inhabitants when he's guarding eggs/fry. The cories have learned to stay away from his cave during those times, but they still get whacked once in a while. He actually killed smaller cories with his whacks. Hope this helps.