I have had my Sunpod Metal Halide running now for over a year. I beleive it is time to replace the bulb. Which bulb do I need to get? I do not see any numbers written on the bulb. From the website these are my options.
150-watt 6500°K
150-watt 10000°K
150-watt 14000°K
150-watt 20000°K
I currently have live rock with a Pom Pom Xenia Coral and a green and orange zooanthid. The reason I think the light has died down is that coraline algae hasn't been growing recently and there is continuous growth of bad algae.