I have 160 gallon mixed reef system and I have some chalices that have been doing really good for about 4 months. Now all of a sudden, a few of them have shown signs of receeding. Its only a certain few that are receeding like my pink ******* and a couple watermellons. My Tyree Miami Hurricane and my Cornbred Bubblegum Monster are still going strong. I have been trying to stop them from receeding for the last 3 weeks now. I have moved them from the frag rack where originally they were doing good and then started to receed after a few months and now moved them to the substrate at the bottom of the tank. I run 3 250 MH with T5 supliments. The MH are on a timer to be ran for only 5 hours a day. I even tried to put the receeding chalices in a shaded area hoping they would stop receeding. They are eating 2x a week mysis and articpods. My water perimeters are top notch. And are as follows:
Calcium- 450
Alk- 12
Magnesium- 1300
amomonia- 0
nitrites- 0
nitrates- 0
phosphates- 0
salinity- 1.027
temp- 80 degrees
PH- 8.2
Flow is 2 MP40s running @ 60%. MHs are about 14" off the water. I have not noticed any fluxuations in my PH or ALK. I have no problems with cyano or any other kind of algea. I am at my wits end on trying to figure out why my chalices are receeding. Any help would be greatly appreciated. Thanks!
For example. pics are of before and 2nd pic is now....help!
Calcium- 450
Alk- 12
Magnesium- 1300
amomonia- 0
nitrites- 0
nitrates- 0
phosphates- 0
salinity- 1.027
temp- 80 degrees
PH- 8.2
Flow is 2 MP40s running @ 60%. MHs are about 14" off the water. I have not noticed any fluxuations in my PH or ALK. I have no problems with cyano or any other kind of algea. I am at my wits end on trying to figure out why my chalices are receeding. Any help would be greatly appreciated. Thanks!
For example. pics are of before and 2nd pic is now....help!
