Corals dying

[kien]

Indeed, there are just as many "zeoVit/vodka/sugar crashed my tank!" Stories. I for one have been using bioPellets since they first came out 3 years ago and I jam pack my reactor which isn't even one of those fancy new recirculating reactors.

Anyway, if I was to make a suggestion I would say your alk vs calc do seem out of balance. In a probiotic system it's generally suggested that a lower alk is better. I typically run mine at 7/8 with calcium at 420.