Favia Receding

[monte5000]

My favia coral is approx. 6 months old and I noticed that a lot of the flesh from the favia coral has receded. When feeding, I no longer notice any tentacle extension. Any help would be appreciated.

75gal tank, 6 bulb T5, 30 gal sump, sg 1.025, mag 1400, dkh 9.6, cal 460,

 

[organism]

How are you measuring your salinity? Is it getting ok flow, any fish that could be picking on it?

 

[monte5000]

I am measuring the salinity with a refractometer. Currenty, I have a Hippo Tang, yellow tang, kole tang, and 1 clown, and none of them seem to bother the favia. The favia is located on the substrate (crushed coral) bottom of the tank.

 

[organism]

Have you calibrated your refractometer with calibration fluid? If you calibrate them with ro/di they can be way off. I had a similar issue last year and turns out mine was off by like .004...

 

[monte5000]

ok!! I also taken a sample to the LFS and the confirmed the same reading I have of 1.025.

 

[Jhigga15]

I am having the same problem. I have had mine for about 9 months. I bought it as a fresh cut frag with no color. it was going great, it colored up nice and split. I added a Vortech MP10 and I moved it to the bottom of the tank so that it would not get too much flow. Now it's tentacles don't come out any more and it's starting to recede. I am guessing that it is starving, I have been spot feeding it Brightwell Zooplanktos-M. I just picked up some Dr. G's Live Phytoplankton and Rod's Coral Food. I made a mix last night, everything else went wild except that.

My Sal is 1.025 and my tank tests all say everything is good except may Cal is high.

Help Please