I have a RDSB/cryptic zone on my system. Cannot say in isolation how much it contribute to the success of the tank ...... but I like it! I feed it from my manifold pump, so flow is relatively slow, with modest detritus accumulation. I don't worry about detritus buildup anywhere in my system, other than if it becomes an aesthetic eyesore. I find it to be an excellent medium for micro fauna and it is mostly mineralized by that point anyhow. I do periodically 'replenish' the cryptic tank with a cup of crap from the bottom of my LFS live rock bin.
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Simon
Got back into the hobby ..... planned to keep it simple ..... yeah, right ..... clearly I need a new plan! Pet peeve: anemones host clowns; clowns do not host anemones!
Current Tank Info: 450 Reef; 120 refugium; 60 Frag Tank, 30 Introduction tank; multiple QTs
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