Thats a bunch of fish! Thats 3 tangs, a foxface, and a copperband along with the smaller fish.
Is your tank well established? Your ammonia and nitrate arent very good. First thing you need to do is a water change and then think about how all those tangs are gonna fit in your tank once they grow. edit to add.. your profile says you have a cylinder tank? Never had one but the small surface area may not be allowing enough oxygen into the water?
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