Eel or other ill eat you alive fish.

[Corbin]

yeah thats why im thinking more of a richardson moray, more aggressive stays small.
as for a lid, what do you think the best would be, good ol glass lid?
i was thinking of a steel mesh one, like ones for snake/lizards, and cutting it so its glass for most of it (as not to defuse light) and then use the mesh around back to cut room for my hang on skimmer/cords, or considering i ahve a AIO, just cut it and bend it so it dips in the water flush against the back, so then i dont have to make a lot of little cuts and would be safer.
what have you guys used?