All fish can potentially jump... just keep a top on it, and remove when your doing maintenance, taking pics, or showing it off to company (remove before they enter room ).
Tops are literally a life saver, and if you truly care about your fish it's the least we can do.
I'ev kept gobies in my 30g cube for years with no jumping. (lucky I guess) First was a yasha haze goby that I had for several years until a hitch hiker crab mauled the heck out of it. (rip little guy) Now I have a yellow watchman goby.
I'd say if you do go for a cover, use the bird netting style top as most fish can fit through egg crate.
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