Corraline

[duke]

Recently bought LR and it has green and purple coraline on it however it is starting to peel off in certain spots
Ques how do I know if LR is actually alive and when will I see results from growth
The aquarium that I bought it from said it was just added to the LR tank and would be ready in a couple of weeks but it had the green and purple on it already so I'm not sure what he ment please someone explain did I buy dead rocks

 

[timo]

Did you add it to an existing tank or a freshly started one? Either way, if it is uncured rock, you'll know from the smell of it (smells like dead stuff) and from the elevated level of certain chemicals in the water.
Post some more info and go from there.
>>> how much rock, tank size, what's alive in the tank...

 

[timo]

Oh, if it does these things, it's most likely still "alive".