yellow goby jumped out :/

[ElitePirate]

hello friends

I have a 15G tank with a hood. it's a net and tied to my auto topup tube holder. But for the first time my yellow goby managed to jump outside :( I have no idea why, because he wont even swim up to the surface. He will always stay in the sand bed. Even while feeding. My water param all ok and nothing changed recently and I never add anything to the tank.

Has anyone had any similar issues?

 

[Gonebad395]

Yep there are fish that are asily spooked it happens

 

[laverda]

A helmet grab, another fish or something startled.