Hey guys, i just have a quick question, i would love to here your feedback. I got my icp test and the only concerning thing was the copper levels which test at 6.67 mg per liter. Is that acceptable or should i take action? B) whats the maximum acceptable level? C) my rodi water tested 3.5 mg per liter which i guess thats were the coper came from, any suggestions on what to do? Or is this level non toxic to my corals
My tank is 350 litre net water volume

My tank is 350 litre net water volume

