I run 3 fluval marine 3.0s, 48-60inch, I have most on full lighting except one, when I ran all 3 on full spectrum my toxic frogspawn started to bleach and turn white sp I dimmed them down a bit. I'm beginning to think I need to better place all my corals...
White light looks brighter to us than the actual PAR it creates. The only way to know for certain is to measure it with a par meter. Our eyes are a terrible judge of par they are easily "tricked". The blue and purple spectrums are very deceiving the other way around from "white" light they look dark to us and at a given brightness to the eye can be delivering much mor PAR than it looks. The fluval 3.0 lights are imo not strong enough for a lot of corals at any deeper point in a tank. The only way to tell that though would be to measure it properly. I have a 3.0 over my fuge and at 100% it looks much brighter than it actually is, I am getting maybe 60 par at the bottom. Its fine for macro algae but I would not expect many corals to live let alone thrive. Moving corals around may help.
Think I'll sell off my coral and go fowlr. I think I've dove into coral too quickly. Just isn't a very good demand for coral here in Ontario Canada
No, that seems to be enough.
You're throwing the towel hela fast.
I'm on the fence. I haven't made any moves yet. I've rearranged some coral, adjusted some lighting hoping for a difference.No, that seems to be enough.
In my tank sponges only grow on shaded areas. When I put them into the light they melt away.
I still don't think they are responsible for the zoa decline. Zoanthids can be very finicky and aren't exactly beginner friendly. They also need at least a certain amount of nitrate and phosphate as other members have mentioned already. Weak zoas will get overgrown. If not by sponges then diatoms or something else.
You're throwing the towel hela fast.
Aquariums need a bit pacience. All of them.
