question about live rock

[joedaxe]

I have my tank up for 6 months now and nothing is growing on my live rock what could it be.Is there anything that i could do or add to make things grow.

 

[patandlace]

If you want coraline algae to grow on your rock. It needs to be introduced to the tank and have your calcium between 400-450. I'm not sure what else you want to grow from your rocks. Unless you buy other inverts there may not be any sponge or feather duster hitchhikers.

 

[sweetfishy]

I have used Purple Up in my new tank... I have grown purple, pink and green in just a week. It works great. It makes ur water cloudy for about 4 hours but other than that I love it.

 

[fishkid2]

What type of lighting do you have?

 

[joedaxe]

I have pc 192 watts and i do add purple up but only twice a week, my cal is around 420

 

[hot883]

Personally I would not add anything that I can't test for.
Purple up has it's horror stories too. It has crashed some tanks on here.

 

[shogun323]

Originally Posted by hot883
Personally I would not add anything that I can't test for.
Purple up has it's horror stories too. It has crashed some tanks on here.
I agree. Your calcium fine at 420. I would go to your LFS and try to find a small piece of LR with Coraline growing on it and add it too your tank.