Hi, has anyone used Grotto rock in their aquarium? They are selling it at my local LFS at £5.99 per kilo. I have read mixed results online. Some saying it is just a nitrate factory, others saying it caused cyano(which I am struggling to remove at the mo(not from using Grotto though.) to others saying they had no probs at all and that it made perfect live rock over time. Just wondered what everones thoughts on here might be.
After all it is a damn sight cheaper than LR.
Thanx
Si
After all it is a damn sight cheaper than LR.
Thanx
Si
