I setup my AP24 on sunday with 17lbs of live rock from an established tank, 20lbs of dry rock, and 10 lbs of live sand from petco. I filled it up with petco premixed saltwater and let it run. I have not purchased a test kit yet but will prolly go do that tonight.

When I got home today my white sand and some of my rocks were covered in a brown looking algae especially the rocks toward the top of the tank. I tried to get a picture but this is the best I can get,





Is this normal?