I have not opened with difficult polyps corals I've encountered

[Masoudazad]

Hi I have a full sps tank . color and its excellent growth conditions. However, I don't see any polyps during the lighting of the I use a zeovit method

from m. thank you. If you reply

 

[ihavecrabs]

Beautiful tank.

Many times, polyps only extend at dusk and night and can be caused by lighting or fish that nip at polyps.

If you are getting good growth, I would not be overly concerned with polyp extension during day-light. Do you get any polyp stimulation during feedings?

 

[Tahoe61]

Angel fish of all types can be problematic in small to medium sized tanks.

I have witnessed my clams and sps close or retract at the mere swim by of Dwarf Angels.

 

[Servillius]

If it’s all growing, it’s not a problem. I use Zeo too and while I’ve had tanks that were extending all the time, my current tank doesn’t do it that much.

 

[Servillius]

Also your tank is beautiful. Sit back and enjoy a bit!