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Originally Posted by kennyv
The Tufa rock I have is sand colored. Its not lava rock...I did a bunch of reasearch prior to buying it and deternined it would be safe. I know my setup is not ideal for a reef tank. I hope in a few months it will stabilize and be an attractive marine fish tank....
Kennyv
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tuffa rock is not volcanic at all but the stuff you got contains high concentrations of minerals and such which can leach into the tank. weather it would cause cyno or not but it won't help. for what its worth I wouldent even use white tuffa in a tank.
Steve
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