Unhappy corals

[Chris145G]

Hi
I started to have some issue with my frogspawn coral for the last two week it been closed up only the green coloured one rest of the colours are happy. And for the last week my torche corals started to retract as well.
Nothing has changed in the tank.

Its 150g with sump.
Dosimg aquaforest 123+
Temperature at 26c
Parameters using hannah and salifert . Double checked with lfs

 

[Hemmdog]

Mags low for for how high your calcium is, alk could use a little bump too. The mag would be my best guess.
What lights do you have?

 

[Chris145G]

3x hydra 26hd runing modified ab+ on acclimation mod 20%. Would 1260mag effect only the frogspown and torch corals and leave everything else looking good?? I have lots of sps and elegance, platw coral ,7 different colours of hammers and all of them are happy

 

[Scotty Buttons]

0 nitrates could be the issue.

 

[Hemmdog]

3x hydra 26hd runing modified ab+ on acclimation mod 20%. Would 1260mag effect only the frogspown and torch corals and leave everything else looking good?? I have lots of sps and elegance, platw coral ,7 different colours of hammers and all of them are happy

They wouldn’t all necessarily show signs right away. I find my euphilla to be a little shrunken when my mag is sub 1300. It’s an identifier coral in my tanks.

 

[Chris145G]

I started to feed a lot more 2xfrozen cube of pe mysis + pellets + flakes everyday and i feed reef roid once a week but they just stay like that

 

[Chris145G]

I will add some mag buffer and see. Thanks