First, I’m new to reefing and trying to figure out what works for me. I started my tank 4/1/2022. My tank is a Red Sea 350 and I’m using Red Sea LED90s. I have Zoanthid, Acan, Frogspawn, hammer, and neon green toadstool corals in my tank. I had the blue light setting on the LED90’s on mid 40’s to low 50’s. Everything looked ok. But I noticed after a few months the zoanthids (bottom of the tank) that were getting filtered light because of rocks above we growing like crazy and the ones that most likely receiving the highest PAR we’re doing the worst. (Color looked better, but not growing). I have since turned down my Blue Light PAR to low to mid 40s. It hasn’t been long enough to know for sure, but the are growing better, but with a little less color.
michael
michael