Trying to see if anyone has any ideas I can try to help solve the recession and loss of various Euphyllia/Fimbriaphyllia. My tank is over 90% of these types of corals so I really need to figure this out.
My water parameters have been mostly stable. Alkalinity has been the one parameter that has lowered slowly over time, but not by much.
Alk: 8.5 dkh (used to run 9+, but slowly declined to 8dkh from 4/24 to 10/30. I dosed soda ash slowly to get it back to 8.5dkh over the last 2 weeks)
Ca: 350-375 ppm
Mg: 1200-1230ppm
Sg: 1.025
Temp 76.5-77.5 controlled by apex
Lighting and flow hasn't changed.
I have an ICP test that I will be sending out tomorrow. I perform 10% weekly water changes with the occasional skipped water change. I started running carbon again after today's water change. I used to run it monthly, but haven't changed it out in a couple months.
I dip the corals in CoralRx and no pests have ever been seen.
This all may be related to a BJD issue. Here is some chronological info.
I received a coral from an online vendor on 11/21. The tissue of the corners was a little receded over the skeletal lip. On 11/23 I noticed this brown string coming from that spot.
This is the next morning on 11/24. I ended up removing some tissue, dipping in peroxide and supergluing that part. However the issue returned on 11/30 so I trashed the coral.
On 12/5 I noticed one head of my yellow octospawn was a little closed.
On 12/8 I noticed the head was mostly gone, but some tissue remained at the base. The next day, the splitting head on the right was showing stress so I cut that section out and trashed it.
On 12/19 I noticed these 2 hammers. I trashed the single head and removed/trashed the heads with issues on the other.
Since then, I have noticed another octospawn with receded base tissue and a couple other torches showing some issues. Today I noticed this base tissue damage to this torch that had been doing well as you can see.
Please let me know if you have seen this type of issue before, and if there was anything you tried to solve it.
I'm happy to provide any additional info.