Some polyps are closed

[SethIstanbul]

Hello Friends,

Some new polyps at the zoa colony are closed. All others seem to be happy and growing.

Nitrate 10 ppm, calcium 420, phospate 0,02, kh 11,8

Any ideas?

Thank you,

 

[krollins]

It is not that surprising to some zoas be closed after being newly added.

 

[kevgib67]

Just settling in, some take longer than others.