Thanks.... i am currently Running arm in circulation Chamber and old type reborn in secondary, but want to try full on reborn...I still haven’t seen the larger granules like the old stuff. I tried the newer and it clogs way to easy. I switched back to the ARM coarse.
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I can use po4 as well..... i thought reborn Produces alk and cal better,,, i am dosing alk to keep 8-8.5I really don’t see a difference in the corals with color or growth. The ARM is a little higher in Phosphate which I don’t mind because I can use it in my system. I’m running the ARM in both chambers because the smaller size of the reborn just became a ditritus trap slowing the effluent rate and lowering the PH. They both melt about the same rate for me.
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You could try using a bottom layer of ARM and a thinner layer of Reborn on the top if you find that it is clogging.