Euphyllia eating flatworms?

[GothFishKeeper]

I’ve been having a problem with my euphyllia for about a month now. I thought it was my emerald crab, and it seemed to stop after I finally was able to remove him. However that didn’t seem to be the end of it. When this started I had two hammers, a frogspawn, an octospawn, and a torch in my euphyllia garden as seen here:


The torch I believe got taken out by that giant bta, but I got rid of the nem and my new torch also went within a couple weeks. My frogspawn as well as two of the three heads on the octospawn also got taken out by something. I dipped the octospawn and a couple flatworms came off, but I was told they’re harmless ones. Are they though?
View attachment 20260123_000540_32F6773B-08EC-4DCF-BD52-D37F099B6352.mov

View attachment 20260123_000607_6976FFAE-7E2C-4010-B80D-840BF8C9283D.mov

I just came home from work to find the last head on the octospawn close to death. I have no clue why this is happening or what could be eating my euphyllia. It’s only the euphyllia, literally nothing else has this problem.

The fish I have are all supposedly reef safe, but I’m still so scared that one of them could be the culprit. There are 7 of them:
WTB tang
Watanabe angel
Pair of clowns
Dragon goby
Paid of pygmy wasps

The only other thing I wonder about would be my red squat lobster. I got him because the one article I could find said they’re reef safe, but there is literally only that one single resource available on their care/behavior.

Someone please help me figure this out, I just wanna be able to keep euphyllia again. They’re my favorite corals and it’s so devastating to see this happening in my tank.

 

[tripdad]

I would eradicate the flatworms immediately. I remove the coral slowly shaking it as I remove it from the water. That usually gets them to retract. Then I scrub the sides of skeleton up to the flesh line with a stiff toothbrush in a pan of tankwater until spotless. Then rinse in another pan of tank water. Then dip and rinse. Then back in the tank. I recheck every 3 days for a month.

 

[rayadog]

The moniker eefw, as I understand it, can refer to several species of flatworms. You might have gotten a misID, as the easiest explanation is to count those as eefw.