Ulns And Zoas
Over the past few months my system has been running pretty much next to no nitrate (undetectable on Red Sea nitrate pro test kit) and 0 p04 on Hanna checker. My sps are doing really well but I feel as if my zoas aren't as happy as they could be although bright and open well, some colonies seem smaller then normal. To combat the lack of nutrients as I know they like Alittle N, I try feeding reef roids 2 times a week and I also ad polyp lab colours every day. Just wondering what others are doing if running ulns and keeping zoas to keep them happy and get good growth?