I have a colt coral that has been slumped over for a couple weeks now, yellows and green polyps not opening all the way.  not sure what the cause is.  tried moving them to more/less flow and no effect.  wondering if my lighting is wrong.  PCs probably need replacing, guy i got the fixture from (2 mos ago) had them "about" a year.
Tank - 75g w/ 90lbs live rock, skimmer
Stock - 5 asst damsels, snowflake eel, 2 engineer gobies, blue spot grouper
Coral - xenia, few shrooms, colt, yellow polyps, green button polyps, ricordia
Parameters
Ammonia - 0
Nitrite - 0
Nitrate - ~5ppm
Calcium - 480
     
Lighting - 220w VHO (10000K, 12000K) 135w PC (50/50)
Any thoughts on light being the culprit or anything else???
				
			Tank - 75g w/ 90lbs live rock, skimmer
Stock - 5 asst damsels, snowflake eel, 2 engineer gobies, blue spot grouper
Coral - xenia, few shrooms, colt, yellow polyps, green button polyps, ricordia
Parameters
Ammonia - 0
Nitrite - 0
Nitrate - ~5ppm
Calcium - 480
Lighting - 220w VHO (10000K, 12000K) 135w PC (50/50)
Any thoughts on light being the culprit or anything else???