Water doesn't seem crystal clear when the Radion is on

Gotcha. My concern about the alk is that people say with bio pellets the 11 alk can cause burnt tips on sps corals.
 
It can, but if you got your alk down to a normal level (just dose calcium and magnesium but not alk for a few days/week/whatever) then do your weekly 10% or whatever water change with reef crystals it won't get that high.
 
I found the problem. It was an algae bloom from my biopellets. Once I degunked the BP reactor and cleaned up the sump the water cleared up right away.
 
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