Tissue receding on euphyllia help please!

Stuartmercer · Jul 20, 2020

So in my 29g nano reef i have 2 euphyllias atm. Ones an orange frogspawn and the other is a gold hammer. Recently, however, i have noticed the tissue started to receed on the base of them. Both are fully extended when not disturbed so im a little confused on why the tissue is receding. Both recieve moderate flow, the frogspawn does recieve a little more flow though. Please give me some input!

Calcium: 360 (is now at 430)
Phopshate: 0.3
Nitrate: 0.1
Nitrite: 0
Ammonia: 0
Mag: dont test for it
Alk: dont test for it.

Pictures:

ludnix · Jul 20, 2020

I would reccomend testing for alkalinity, I think there may be a correlation between the two. You also say your calcium was 360 but now at 430, when did that change?

Stuartmercer · Jul 20, 2020

ludnix said:
I would reccomend testing for alkalinity, I think there may be a correlation between the two. You also say your calcium was 360 but now at 430, when did that change?

my calcium level changed when I did a water change and dosed