I want to have an open top but scared with wrasses...

Hey guys, my sump has an open top and is not underneath anything so the gas exchange is good but I want to have an open top on my DT when I get my new lights but I'm scared my Melanurus Wrasse and maybe even my Leopard Wrasse will jump out. Is this fear legitimate or is jumping just a rare occurrence that has been blown up into myth? Let me know what you guys think...