White crystals forming at base of polyps

hey guys so i was wondering if anyone knew what this was… it looks like white crystal looking things that starting forming at the bases of what i believe to be red button polyps the polyps seem to be slowly starting to close.. what should i do? can it infect other corals in my tank? there are no other...

identify

i have a 55 gal reef tank 50lbs live rock 6 emeralds 1 mexican turbo 20 hermits an aray of corals clowns sifters so on but recently i have noticed that instead of algies on glass it has become white hairs that then turn into small egg looking things every where especialy on heater and skimmer intake and...

Bowerbanki Warfare

My kick butt Aussie Bowerbanki just commited War Crimes against a beautiful Acan Lord in my daughter’s tank! Freaking thing shot out filiment looking things onto the Acan Lord covering it more than 1/2 of the coral. By the time I got home, it had just about totally killed the 1/2 that had those bissle...

Aiptasia, Fanworms, or something else?

Hi all, I’m completely new to aquariums, and have some stuff growing on my live rock… I fear they may be the dreaded aiptasia, but they don’t really look exactly like the pictures I’ve seen… but I can only find pictures of adults, not tiny growing ones. I also have some...

Aiptasia, Fanworms, or something else?

Hi all, I’m completely new to aquariums, and have some stuff growing on my live rock… I fear they may be the dreaded aiptasia, but they don’t really look exactly like the pictures I’ve seen… but I can only find pictures of adults, not tiny growing ones. I also have some...