What's wrong with our open brain corals?

[RoughneckReefingWife]

The bluer one we've had for a while the green is a new addition. The older one did great for a while. Inflating daily. Now it won't do anything. The green one is new, looked beautiful and healthy in the store but hasn't inflated since introduction to tank about a week ago.
We have a 180 gallon tank with odyssea t5 with dual metal halides and blue led's.
Sump has a skimmer.
All other corals look healthy and happy.
No nuisance fish that I know of.
A few hermit crabs and turbo snails.
Salinity 1.026
Phos and ammonia 0
Nitrates 5ppm
Alkalinity 9
Calcium 480
Ph 8

Any advise?

 

[DeepBlueSomething]

Sorry to hear -- did they both stop at the same time?
Any other recent changes to tank set-up or inhabitants? When was last WC? Any changes to sump / skimmer? Since parameters look ok, trying to think of anything else that might prove helpful...

 

[RoughneckReefingWife]

No other changes. Water change last Wednesday

 

[saltyfilmfolks]

Are you running gfo? Or a Chem filtration?

 

[RoughneckReefingWife]

We have 2 phosphate reactors in our sump

 

[saltyfilmfolks]

I would suggest not using them if you have no phosphate in the system.

 

[Ocelaris]

Do you feed them? Highly recommend it. My Lobo was the same, just kind of hanging. Once I started feeding it, it was a whole nother ball game. Try some mysis an hour after bed time. Three times a week isn't too much. If the tentacles aren't out yet, sprinkle some food over it until they come out, then gently toss it some food. Also turn off most of the water movement for 20-30 minutes so they can pull the food into their mouth.

My Lobo will eat every third day, my chalice and acanthaestrea, every day. My new scolymia, acanthophyllia and indophyllia will eat every night if I have time.

Eventuality I'll get some 2 liter bottles, cut the tops off and feed during the day. Otherwise the fish and crabs will rip the food out of the LPS mouth which can damage them.