I've kept & bred cichlids for years now & I use small gravel & they enjoy sifting through it.
BUT I am planning to switch to black pool filter sand or the eco-complete sand or something of that nature, next year when I stop being lazy. I'm doing it b/c I know that cichlids love sand & b/c i've never tried it to compare it to the crushed corral/gravel mix that I currently use. :headbang2:
The downside to sand, as I've read it to be from hobbyists, is the cost, the reported hairline scratches to the glass of the aquarium, (same thing w/ gravel) & that it clogs many filters & pumps/powerheads to an extent that some people with sand are switching back over to gravel.
All in all though, I think it's worth trying & see how it works for you.
gjx/ljx :thm: