Euphyllia Dying

[jml1149]

Hello All-

My 29g euphyllia tank is slowly crashing and I'm at a loss. I've seen brown jelly before, but this is different. It's like the corals are dying, and then disintegrating. They don't retract into their skeletons, they just die. I had an initial phase of this and lost 4 colonies of corals I've had for years. I started changing water like a crazy person, 5g every other day in a 33g system, and it seemed to subside.

But now again today another hammer frag is showing the same signs. Picture in next post. Parameters are as follows:


Salinity: 1.024 calibrated refractometer
Alk: 8.05 dKh - Hannah
Ca: 440 - Red Sea
Mag: 1450 - Red Sea
Phos: 0.06 Hannah Phos Checker, but reads the same for RODI water with new filters. Probably a bad unit or bad reagent.

Kessil A160 lights have been used all along. Kalk in topoff.


Any suggestions appreciated greatly, its tough to watch these things die.

 

[jml1149]

You can see how the mouth is gaping open and the coral polyp is just flapping around.

 

[jiminy_crime]

All looks like my tank params wise but the only thing I changed a few months ago was I switched to 2 part B-Ionic and dropped Kalk.

Have you checked your pH? I know people say you shouldn't have to measure it but Kalk in a small system like that using an ATO can spell disaster. Just my 2 cents.


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[jml1149]

Yeah pH is 8.10 to 8.2 via Apex monitoring. Appreciate the comment.