I have a question regarding Lampeyes too so hope it gets spotted here rather than starting another thread.
I'm hoping for an answer from an experienced long-term owner. Do they stay close to the top, as the ones I've seen in my LFS, or do they tend to roam around?
I'm looking for a small fish that will stay very close to the surface, certainly the top third at the lowest, that doesn't mind a reasonably high flow rate from the filter (though that's flexible at the flick of a switch of course). I don't like Hatchets but these guys are kinda cool. I've read that, like many fish, they tend to look even better once settled in to a home aquarium.
The problem you'll have is defining 'lampeyes'. There are lots of different species with very different behavior. Which one are you looking at?
My Procatopus aberrans aren't great jumpers, but I keep the tank covered. The most common lampeye around here, Poropanchax normanni, will jump readily.
My Lacustricola hug the surface, my Procatopus cruise the middle and my Poropanchax lean towards the surface but do cruise around the middle. They're all fairly different.