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thx

Thanks for your comment.

I wanna to re-do my rock work to make more cave for the fish and add some Lps. do i cure the ceramic rock add to the tank？

Korallenwett ceramic rock from germany.

Thanks for you reply.

I don't have sand bedding, only live rock. I 'm planning to change to use the artificial rock. May I still take away the bio ring？

I have fowlr and wanna to have ats for filtration. Do i remove the bio rings?