Rough go with euphyllia

[Scolyosis]

Hello all, I have a frogspawn and hammer coral that are not looking good. They have receded significantly. I have tried what seems like everything to bring them back. I had undetectable nitrates and phosphates so I decided to dose them to keep them at the levels they are at now; no changes. I also use kalkwasser as well to keep ALK above 7. What should I be looking at to help and get these tentacles extended

I have a 28 gallon biocube with Steve's LEDs. The lights are on for about 12 hours. I have the LEDs programmed to follow sunrise and sunsets in real life. I use primarily the blues with little white.
Phosphates: 0.08
Nitrates: 5
MG: 1600
Calc: 400
Alk: 8.5
I have 2 koralia 450s which provides plenty of flow, but I have the euphyllia out of direct flow.
I also do a 5 gallon water change every week or two, not on an exact schedule.

 

[BlennyTime]

Sorry to hear that! How do you dose your kalk? If slurry gets into the tank, it can sting corals.

Any other corals in the tank? Some pics would be helpful.

 

[Scolyosis]

I have the kalkwasser in my ATO and it doesn't sit on the bottom, I have it elevated to prevent the solids from getting into the pump. I have a lobo, some zoa, and mushrooms that all seem to be doing well. Ill try and get some pics up

 

[Scolyosis]

Here are some quick pics and I am including a galaxia to the list of corals not doing well anymore