Bottom dwelling fish keep jumping out.

[Anonymous]

I have a 55g, packed with live rock. About a month ago, I added a yasha goby and previous to him I had a jawfish. Both jumped out. Could it be there is just not enough room on the bottom for them? I had the top fairly
well covered I thought, a couple small openings for cords, but they both found them. Is the tank just too skinny for these timid bottom dwellers?
They both jumped about a month after being in the tank, they were eating well, and acclimated very slowly, but both kept moving from burrow to burrow almost daily, like they just couldnt find a spot to call home. I think they were just too close to the front glass and it made them uncomfortable.

 

[Anonymous]

That may be, yes. But, is it also possible that there may be something in there that's driving them to the surface and out? (Think brittle star or other predator/competitor for that space.)