I have a 29 gallon that has been set up for 3 weeks. I used live sand and live rock, which I have 15 lbs. I have a Singapore angel that I got a week ago that I cant get to eat. She seems to be doing good, because she pecks at a piece of cured rock that I bought for her to have some algae. I have tried flake food, mysid shrimp, brine shrimp, and dried seaweed. I have also noticed a lot of new dark maroon algae on my live rock . Is this good or bad. I am new to this hobby and any help will be greatly appreciated.