This is actually pretty interesting read. @pandaparties this from vettguy may help.just to clarify, the reason I'm asking is because I found a flatworm that looked like this in the bag with my torch. It was definitely alive because when I poked it, it curled up and inflated a little bit. If this is similar to what you had, then it would be helpful to know someone whose already dealt with them.
EEFW infestation (euphyllia eating flatworms)
I see them on all my Euphyllia right now. Two euphyllia (hammer and torch) are very unhappy. Pics included. I think you can see eggs on the bottom pic. Thought it was because My nitrates are too low but not the case I guess. I believe these are EEFW but if they are another kind of flatworm let...www.reef2reef.com
I've never heard of using a blue velvet nudibranch, but I did see them for sale recently, they are like 20$. Maybe give that a try.No flatworm is a good flatworm and should be considered a need to remove ASAP.
Obviously, the three weapons against these are:
- wrasses or blue velvet nudibranch
-siphoning
- chemically assuring dead ones vacuumed daily .
Check for presence of eggs daily which are tiny