- Location
- Staten Island
one of my zoa colonies stopped fully opening recently. now they either dont open or only open half way. also today i noticed what appears to look like a little bit of algea growing on them. this is the only colony that is affected. i tested my water and everything seems to be running just fine. should i put them in a spot wih a decent amount of flow to heal them up? any suggestions? help! these are one of my favorites.