Clove polyps are easy, and should be in a good flow, Is anything disturbing them, are you changing your water weekly.
Try placing them in a good flow, seeing that everything else checks out. With your stocking levels as such, your weekly waterchanges should be more than adequate in providing all the chemicals your tank needs. Any algae issues, any photosynthetic issues with such, dropping the pH at certain points throughout the day. Measure your pH in the morning and again in the evening. Any Nitrate build up associated with overfeeding etc.
Just a few pointers to look at Sef.
Regards
BigC
Try placing them in a good flow, seeing that everything else checks out. With your stocking levels as such, your weekly waterchanges should be more than adequate in providing all the chemicals your tank needs. Any algae issues, any photosynthetic issues with such, dropping the pH at certain points throughout the day. Measure your pH in the morning and again in the evening. Any Nitrate build up associated with overfeeding etc.
Just a few pointers to look at Sef.
Regards
BigC