Good question. I don't really test those lol . I have a big chaeto reactor at the bottom . I only feed them twice per day and 10% water change weekly. Fish have been in my tank for yrs
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Bought a used tank to set up my CSB, but decided to go with different direction
Everything you see in the pictures below!!!
Tanks is 24×24×20 rimless
Stand had water damaged
Sump
Skimmer (Magus 5)
Return pump
Dry rocks
Led lights (4)
Wave makers
EXCEPT, 3 Ocean Revive LEDs for FREE ( fyi...