Anyone know what this algae is in between the mushrooms?

Finally!!!

Just wondering if it’s normal for a hammer coral at night to show a bit of its skeleton 😬 all parameters are good and flow I think is fine. And It’s nice and puffy during the day any suggestions would be great thanks!

Happy Easter Everyone!

New to candy cane corals but do you guys think this is too much flow or good?

Any help would be awesome, I don’t know if it’s an internal parasite but 3 of my fish have bloated stomachs and one has a visible hole in his stomach after it looked like it popped.