Arghhh. has anyone tried their Reef Crystals line? should I switch to that? regular IO salt has worked well for me for many years now...

Hmmm
 

Though you said the problems started before you got the cleaner shrimp, I do remember mine ****ed all of my Lps off constatly

Amazing. Glad to hear. Now I'll have to trade you for a few heads cause I no longer have any left. I have some IO salt here if you want to try a water change. It's from the same batch I've been doing water changes with for a while, so it should be fine.

Anthony

From what I've read reef crystals have higher calcium and magnesium. Salt is designed for reefs. Also could it be your lighting?

Are any of your candy cane heads getting stung by sweeper tentacles from neighboring LPS? They come out at night, and can reach out pretty far sometimes.

I bought a bucket of Reef Crystlas - will give this a try. Measured Mg today and it was quite low - 1100. With weekly water changes, one would think that no dosing is requried (and this was the case in the past). However, perhaps the IO batch that I used over the past 3 weeks had low Mg.

As for the lights, I change the CF bulbs every 6 months and these ones are only 4 months old.

Also noticed today that a few other corals started receding, so whatever the problem is, it is systemwide-hopfully the new salt will help it.

Anthony, I will PM you.

Well, if it spreading to other corals, that is serious. Your sg is a little low at 1.024, although not sure if that is enough to cause a problem. Are you using a refractometer?

Calibrate refractometer if using one.

I use a good-old hydrometer.... Every now and then I bring it to the store to make sure the readings are correct...

Ooooo, invest in a refractometer and some cal solution
Great money spent for sure