I run a 90 gallon reef tank with 60-80 lbs of live rock, 100lbs of sand, and 1 marine pure plate in my sump. Total water volume is about 100 gallons with the sump. Recently I have noticed my leather corals and candy canes aren’t doing to hot. I read some forums on here that the marine pure could be leaching aluminum. I don’t know if this is the case or not as i have not done a Triton test yet. That being said, is it better to be safe than sorry and just remove the plate? Will losing the plate effect my bio filter or do I have enough sand and rock for a sufficient filter for my bio load? My tank is 9 months old and is stocked with 2 OC clowns, 3 blue green chromis, 1 Magnificent foxface, 1 long nose hawk, 1 Melanrus wrasse, 1 diamond watchman Goby, 1 Yasha goby, and 2 PJ cardinals. I have a small yellow tang, 3 Banngai Cardinals, and a flame angel in quarantine. Once these fish are added I do not plan on adding anything else. I am also struggling with 0 nitrates. I have read marine pure helps keep nitrates down. My goal is mainly improve the health of my leather but a nice secondary benefit would be to raise my nitrates a little. Current parameters salinity 1.024, calcium 410, alk 9, ph 7.9-8.1 temp 78 phosphates .08 nitrates 0.



