Receding coral....

[Reefer Rob]

Make sure it's not in too much flow. Sun corals seem to be especially sensitive that way.

[calkrog]

i had the same issues, and i started using coral snow and pohls coral vitalizer, and two weeks later everything is looking great. miracle products if you ask me.

[BC564]

I started using Coral snow as well and my corals have responded well and you can see improvement in 2 weeks.....and I didnt think they needed improvement but was encouraged to try it out.