Need help with hammer coral

Looney Tunes

New Member
View Badges
Joined
Jan 25, 2026
Messages
23
Reaction score
5
Location
phoenix
What state or country do you live in
Arizona
Rating - 0%
0   0   0
Not sure what’s going on, it was doing fine till today, the polyps look like they are shedding and falling of ? Very long black string ? Need some help tryna figure out what’s wrong with them..

image.jpg image.jpg
 
How long have you had it? Are those zoa’s right beside it, they don’t look like they are doing well either. Need more info on your tank lighting and flow and parameters
 
I hope that’s any better
 

Attachments

  • IMG_0972.jpeg
    IMG_0972.jpeg
    155 KB · Views: 45
  • IMG_0973.mov
    25.6 MB
How long have you had it? Are those zoa’s right beside it, they don’t look like they are doing well either. Need more info on your tank lighting and flow and parameters
Going on two weeks, they were doing very well till today, and no no zoas, all hammers. I run kessils a360x and flow I’m not sure if they getting to much?
 
Pictures under white light would help. The one on the right in the front looks like it is melting. Hate to be the bearer of bad news for you, bud.
Melting? What could be the cause anyway to save them
 
If the flesh band is receded and the tentacles are looking limp—- I believe there is a possibility of bacterial infection. The iodine dip is basically a "medicated bath" that would kill pathogens without harming the coral tissue. It’s a preemptive approach.
 
Ammonia - 0
Alkalinity 9.9
Not sure of calcium or magnesium haven’t got it checked
Ph - 7.8

All my corals seem to be doing very well jut not the hammer
You really need to invest in, nitrate, phosphate, calcium and magnesium test kits. Salifert are very affordable. Unlike soft corals, hard corals are very dependent on magnesium and calcium for skeletal growth.
 

TOP 10 Trending Threads

WHICH TYPE OF MISTAKE TAUGHT YOU YOUR MOST EXPENSIVE REEFKEEPING LESSON?

  • Moving too quickly or adding too much at once

    Votes: 3 25.0%
  • Skipping—or shortening—quarantine or dipping

    Votes: 2 16.7%
  • Buying the wrong equipment the first time

    Votes: 3 25.0%
  • Ignoring maintenance, warning signs, or redundancy

    Votes: 2 16.7%
  • Chasing numbers or making too many changes

    Votes: 1 8.3%
  • Choosing incompatible fish, corals, or invertebrates

    Votes: 1 8.3%
  • Poor aquascaping or tank-design decisions

    Votes: 0 0.0%
  • Failing to research an animal’s needs

    Votes: 1 8.3%
  • Trusting bad advice

    Votes: 1 8.3%
  • Doing something on the tank when you should've gone to bed

    Votes: 1 8.3%
  • Something else—tell us below

    Votes: 1 8.3%
  • I’m still waiting for my first expensive lesson!

    Votes: 1 8.3%
Back
Top
Home
Post thread…
Market
What's new