volitan1
Member
I need a little assistance please. I am currently running a wet/dry sump with bio balls. I've heard and read that for an established reef/fish tank it's a good idea to remove the bio balls and replace them with live rock. The tank has been up and running fine for about two years now. Here's the question: cani remove bio balls and replace them with small pieces of live rock? will the live rock need light? Thanks for any and all help