Corals issue

[aerialdronemaster]

hi all
I have corals that are doing good and 3 of them I noticed axrong weird ( pictures attached )
Hammer ha some tissue issue for last days
The green on on the top , since I moved him to this new location it looks weird
And (forgot the name) the something brown is not opening .
They were all good ,
All water parameters are food , just calcium is spiking over 500 for some reason , like 520 540. I do water exchange to lower it

 

[Big G]

How are your corals looking today?

 

[fishguy242]

following ;)

 

[aerialdronemaster]

Thank you for asking , I think they are ok

I just have algae problem , constantly brown sand , maybe because I add phytoplankton everyday.

 

[Big G]

Well, I think they look great!

 

[aerialdronemaster]

yup, takes time for them to grow