My pink watchman only get to about half tank height at most and thats when I feed them. lol
So I think the diamond goby is a for sure.
And the midas blenny, I dont see the lawnmower going after such a different looking fish.
That will cover my perchers and bottom fish. woohoo I was thisclose to buying a starry blenny the other day but he looked too much like my current blenny so I passed. Also getting a pair of coral banded.
Now to finally decide on the "swimming" fish. My tank looks so empty with just the yellow tang swimming around as the clowns stay pretty much in the top corner of the the tank. lol