ok some of my coral like frogspawn acans open brain etc. are doing great growing like crazy.then others like 3 different chalis and a maze brain the flesh is receding on them still have all their color though where the flesh is dead algea has started to grow?
yes they are all in different areas well for flow but all closer to bottom/middle you think i shouold move them up?
You might want to check the par ratings at different depths in your tank. The club has a par meter, you could check it out. Might also be that the bulb is changing spectrum and needs to be replaced. The ones you say are doing well are easier to feed and probably catch some food when you feed the rest of the tank. Just a guess...