I have a USA current orbit marine light with two marineland power heads with only one setting. The 20 is in the same room but it’s by a window I also blocked off the light from there with a pice of foam board I don’t have a magnesium, alkaline, or calcium test kit yet and trust me it’s on my to do list. My phosphate is at .05 and hasn’t changed my temp is at 76.2f I normally use api test kits I bought the tidal 35 serchem for this tank it has whatever media it came with but I just added this
it’s carbon plus zeolite which should help with any chemicals. The impeller was sticking before the move and I need to buy a new one.