This is a stupid question but..

[j. crow]

How do fish only tanks keep rock and sand crystal clear?

 

[nissan577]

cause there are inverts in there as well. the CUC

 

[meowzer]

LOL...yeah...fish only I believe just means no corals (???) you still have a CUC

 

[j. crow]

Oh.. I dunno, I just always assumed fish only meant fish only. Thanks for the answers

 

[nissan577]

n.p

 

[small triggers]

I have some snails, but that is it for my clean up crew,, i have LOTS of mechanical and biological filtration along with an oversized sump and skimmer, 20% water changes every 2 weeks and that is what keep my stuff going good....