Oceanicsublimat
Aquarium Advice Freak
Do PCF bulbs lose intensity as they age? I've noticed a decline in my coralline algae recently and some of my polyps opening up as much.. one of my actinics have burned out a few months ago and I accidentally severed a wire that connected it, so I haven't replaced it.. Should I replace all the bulbs? All my readings are within normal limits and my calcium is 420 or better..