Acan Echinata 1 month overview, coral in recession

[Katze]

Hello everyone !

I bought this Acan E. about a month ago, since then it seems not to be opening. A day ago I moved the colony from low light and flow to 100-120 par and medium flow near my torches (no warfare!!!), moved it after seeing the problems.
Current parameters:
PO4: 0,03 usually around 0,06
NO3: 50-100, stable
Salinity: 1,025-1,026

Pictures:

In LFS

A few days later:

Currently it looks the same, but in some places skeleton is showing, like poking trough a piece of fabric.

 

[AstroCoral]

Is the cyano bacteria growing on the coral plug itself? Potential for irritation of the coral if the cyano begins to grow on the exposed skeleton. Your nitrates are rather high for stony coral growth.

 

[Katze]

The cyano is since gone.

 

[Katze]

Anything other ? So far too much flow seems to be the problem. But still nothing changed.