BangBang be right.
I have bought six established tanks over the last two years. The "best" coraline covered rock came from those who did not have enough light to keep an anenome or a 'shroom alive. The coraline tends to decrease as the lighting improves.
My reef under MH grows very little...
The deciding factor here is what else you have in your tank. I used Racoon Butterflys in a FOWLR tank which was completly covered with aiptasia (mean thousands, not hundreds). Gone in two weeks and I have never seen the BFs graze the sandbed. I was told they would go for coral but there a few...
