Sps issue

[fishytime]

Originally Posted by Titus99

How does porus all the way to core help unless there's flow through the rock. And would coraline not block most of these pores.

Asking for info... Not to be ignorant

thus the reason adequate flow and a diligent regime of rock maintenance is important.....tho Im not really sure that there needs to be flow all the way to the core for beneficial bacteria to be able to colonize..... also coraline (and other algae) only grow on outer surfaces that get exposed to light....