ReefBay Social

Hammer Coral

Community posts, questions and answers about hammer coral from ReefBay reefers.

Clear
Mark2jz
Anthony hernandez

Someone asked for a video to see the flow for my hammer coral issue. Currently both of them are around 90-130 par

3
Mark2jz
Anthony hernandez

Either i have bad luck with hammer coral or something is wrong with my tank cause I cant keep them from staying closed up. This is my first hammer that has died and the one that is on the rock seems to loose heads. Also would there be a reason for my star polyp to not open?

4 photos
15

Just got the first coral for my tank it’s a hammer coral (it just got in the tank about 2 hours ago so it’s still pretty retracted)

Is this too much flow for it?

5

First pic: lights on

Second pic: lights of

I have recently set up a new tank and moved all my coral and fish over everything is doing good and parameters are pretty stable but this green hammer coral has shrunk back a lot. Any suggestions would be great on how to save it!

2 photos
10
javier813
Javier Castro

Awesome day today. It's been a week since I put the Hammer coral and the Duncan coral back into quarantine. And all I've done is feed them phytoplankton, Reef energy AB+, and brine shrimp. And their tentacles are starting to come back. Even the Xenia is growing back. Very excited for their return. We are fighting for a comeback.

4 photos
4

This random neon green dot caught my attention, would anyone know what this is? Is it a some sort of baby from the hammer coral?

3 photos
2

got a hammer coral today and I’m all set to get my tailspot blenny and cleaner shrimp next week! Does anyone have experience with blue tuxedo urchins? I want to get one to help with hair algae but I’m not sure 💜

5

My Hammer coral is recovering! After a tap water dip, I killed off some flatworms that were annoying it. Also added a Galaxea and move some rocks around to help with or Jawfishes home area. Lastly some nice pictures through some UV lenses :)

4 photos
0
Loading more reef posts...
©ReefBay 2026

Join The Community

Create an account to contribute to the community

Or continue with
Sign in with Apple
Or continue with
Sign in with Apple

Prefer our mobile app?

QR Code

Scan to download the app

Download ReefBay

Scan the QR code with your phone to download the app

Download ReefBay QR Code

Available on iOS and Android