I need some advice on the filtration on the back of my nano.
1st
Should I use these things that the tank came with(sorry, don't know what it called)? Or should I replace them with live rock in the filter compartment.
Next
I will be using the bottom of this compartment as a DLSB, what should I put at the top?
1st
Should I use these things that the tank came with(sorry, don't know what it called)? Or should I replace them with live rock in the filter compartment.
Next
I will be using the bottom of this compartment as a DLSB, what should I put at the top?