tank is 22x22by13x13x13x28 deep am looking for fish corals not sure what kind everyone told me i could not have too much light now have 1 mushroom got 2 weeks ago at bottom of tank came with live rock opens and closes has almost doubled in size got halide ballast $56.canadian pug $6. bulb 10000k $130 could not resist all brand new sorry 16 inches from water canapy is monstrous