Why are my corals not thriving?
Posted: Mon Sep 22, 2025 5:30 pm
My corals aren't growing like they used to. I have a 50-gallon tank with Zoanthids, Acans, and a Duncan. Water params are good, 0 ammonia, 0 nitrite, 5 nitrate, 8.2 pH, 1.025 salinity. Running two AI Prime lights, 10 hours a day. Weekly 10% water changes with Red Sea Coral Pro. What's going on?