Have you had a chance to look at them under blue light?
A lot of eye popping zoas under actinic lights look kind of boring under white lights.
Lol, on the other hand, If they look lame under both white lights and blue lights, then I would toss them and that small rock.
Save your real estate for so many much more beautiful things!
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Unless that pic was taken in early morning or you just had your hands in the tank, your parameters may be really off.
Dull brown palys are one of the toughest corals.
If they are not standing tall then it is; parameters are off, something was nearby that temporarily caused them to close, some pest is harassing them.
Can you tell us more about your tank?
Size, how long running, what test kits you are using?
For reference, I usually just get mine tested at my LFS and I keep a Hana phosphate ultra low checker that normally blinks at me because my phosphates are just a little too high for it to read.
A 15 gallon water change on ths 75 gallon tank and it will give a reading within its range.
You can keep an absolutely beautiful tank of fish and soft corals with slightly off parameters. I do.
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But you will need rock solid parameters that remain consistent to keep SPS alive.
I still haven't managed that yet.
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