Just got into saltwater 1 1/2 months bought a 16 gallon nano , and built a 25 gallon sump with a. 10 gallon refugium. Got 35 pounds of live sand 18 pounds of live rock. My refugium is 10 gallons with macro allege. I have 3 fish clown , sixline, and a scooter blenny. 1 fire shrimp, 2 emerald crabs, 2 turbo snails, 5 nassarius snails. I am running a protien skimmer about 8 hours a day. Macro algae is growing good. I added some live rock yesterday , and copepods in refugium and now my coral( green star poly) will not open. I noticed some brown spots on it. My nitrates are reading a 10, phosphates 0, kh 9, Calicum 400, ph 8. Not sure why?

