Hi..I am new to the forum, but need some help. I have a diamond goby and he is wasting away to nothing. He does come out and sift the sand but is so skinny I keep expecting to find him dead every morning. I have a 29 gallon Bio-Cube with a clown fish and cleaner shrimp. I am feeding flake food and frozen brine shrimp. What am I doing wrong? I have recently had a problem with red slime algae, could that be it? Any help will be greatly appreciated! Thanks in advance.