Gorgonian in trouble - help with centerpiece coral

[vetteguy53081]

I’ve got ALOT of photosynthetic gorgonians and one of mine is very similar to yours and once and while closes up gets a covering of diatoms and refuses to reopen until I take a toothbrush and gently remove the film that’s built up. Normally it’s open and happy again within 24 hours.

Good flow is important for them. With good flow, Diatoms wont stand a chance to stick to it.