Hello, I just noticed today that my hammer coral is not looking so good. Its flesh seems to be deflated. I have multiple other euphyllia in the tank doing alright. Does anyone what is going on?
Check your parameters if you have a Magnesium test kit. Hammers like higher Mag and its usually good to run about 1500 Mag for them. It certainly won't hurt.
Firstly, has anything changed that made it deflate? Lighting, anything?