This is my first post on this forum. I'm going to be setting up a 600+ gal South American Biotope Aquarium when we build our house (next fall or following spring). The aquarium will be built in the wall and has it's own support room behind it. I'm going to move my seven Angels into it, 100 Copelandi tetra's, 10 neon orange cory's, 10 Albino cory's, 40 Otto's, 1 Bushynose Pleco, 4 Banjo cats, 5 Keyhole cichlids (1 male 4 female), 2 pr Blue Rams, 1 Pr orange flash. 1 pr double red and possibly some other dwarf ciclids. The tank will be planted and have a lot of driftwood. Will the cichlids spawn in driftwood caves or do they need rock caves?