I have a 75 gallon fowlr salt water aquarium. I recently sold back my huma and lunare wrasse(messy eaters, high nitrates) do to size constraints and green hair algae problems. I added coral beauty and a coral banded shrimp. Right now I have a coral beauty, yellow strip damsel, maroon clownfish, pink spotted goby and the coral banded shrimp in my tank. What else could I add to my tank or is my tank already overstocked? I am looking for more algae eaters(especially green hair algae). I also have a question on iodine in regards to my coral banded shrimp,should I purchase the iodine supplements from the lfs? Thanks