Euphyllia

What conditions are you keeping them under? High light or low light, high flow or low flow? Also, you could be purchasing sick ones, it takes a keen eye to tell if a euphyllia is healthy when you buy it, as it could be dying even if it's fully extended.
 
I wrote this for R2R Reef Edition regarding Euphyllia. Probably worth a read.

If your parameters are stable I would point towards pests coming in with the corals. There are genus specific pests that feed only on those corals which may be causing you issues. Lately I've seen a lot of flatworms coming in on the commonly imported maricultured Euphyllia.
 
I wrote this for R2R Reef Edition regarding Euphyllia. Probably worth a read.

If your parameters are stable I would point towards pests coming in with the corals. There are genus specific pests that feed only on those corals which may be causing you issues. Lately I've seen a lot of flatworms coming in on the commonly imported maricultured Euphyllia.
The last few euphyllia i have bought had euphyllia flat worms. Luckily i now know what they look like. Dips do not kill the eggs so they have to be brushed off. LFS dip the corals when they get them but the eggs do not die.
 
What conditions are you keeping them under? High light or low light, high flow or low flow? Also, you could be purchasing sick ones, it takes a keen eye to tell if a euphyllia is healthy when you buy it, as it could be dying even if it's fully extended.
I think my calcium is way too low and that's why
 
I wrote this for R2R Reef Edition regarding Euphyllia. Probably worth a read.

If your parameters are stable I would point towards pests coming in with the corals. There are genus specific pests that feed only on those corals which may be causing you issues. Lately I've seen a lot of flatworms coming in on the commonly imported maricultured Euphyllia.

Nice article - that first picture is my old tank - Ninja is my son and a very good reefer...

Flatworms are a very common issue and they are quite common. Your dip suggestion is spot on...if the coral looks good otherwise but starts losing heads I would suspect flatworms. If the heads are getting progressively smaller - the neck where the ployp actually attached to the skeleton is shrinking - then calcium or more commonly chronic low alk is the issue. If the membranes are receeding - its bacterial or allelopathy - often accompanied by algae...brown jelly needs no description...

I don't find nitrate or phosphate levels that important - they can be quite high or low and you still can have healthy euphylia - provided the things like algae and cyano are not in play. They'll adjust to most lighting conditions and flow provided its not too direct.

I have never found direct feedings or supplemts such as aminos to be of much use - on the contrary - in general, the cleaner the water the better. Of course - as always - YMMV and others wil have a different take.
 

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