brain coral

This is my first brain coral and first coral ever I had the coral in the tank for three days now and this is the first time that I see their mouths open (see in picture) could someone tell me what this means?

I got this new Coral but when I looked on the internet I didn’t see any coral like it it’s a pineapple brain coral I was wondering if someone could tell me if that’s true or what ever it is

Hi guys, So I just got me a new maze coral from my LFS. At the store it was waving its feeding tentacles around so looked great! Got home to notice the frag had tonnes of bubble alagae and feather dusters on, so I used reef RX to dip and the quaratined it overnight, and added him to my DT this...

Hello All, I recently purchases a symphyllia wilsoni. I realized that I am seeing edge of the coral with some skeleton shown. These little zigsaw looking small skeletons are about to fall apart with bits of coral skin attached. Will skeleton regrow and covered with new skins? Re

Can anyone identify this coral? I’m pretty sure it’s a type of Brain coral but was wondering if anyone can identify it any further? I really like this piece and would like to get another one, or two, in different colors. I thought it was a Platygyra but after buying a small Platy I’m not so sure...

FS: Giant Picasso Trachyphyllia roughly 10”+ when fully expanded. It has 4-5 colors, which mimic an Eclectus Mushroom - $600 shipped obo FS: Holy Grail Indo Torch, head splitting in two - $300 shipped obo PM me if interested. Cheers!

Hello everyone! I noticed some greenish “hair” growing on my brain coral frag. I think it’s algae but i just want to be sure, I pulled it off a couple of times but it keeps coming back. It’s growing or coming out on top of the coral so I just wanted know what that stuff is. Also I’ve noticed...

Lps brain coral

Is my favia dying? It's green color has started receding and the receded area is red in color but doesn't appear to be dead. These are before and after pics. Thanks in advance

We have an 11 year old brain coral. Yesterday I noticed this thing hanging from it almost like a cocoon or bees nest any idea what it is???

Hello! I just had the surreal experience of winning a salt water tank last night. it is 30gal and has a variety of coral, live rock, a few types of snails, 2 Peppermint Shrimp and a young Clownfish. I was able to set it up last night with 90% of the original water and added 3gal of distilled...