Lights out, fish go nuts!!

[Sillyfishies]

When I turn off my light all my fish are calm. But within 30 minutes (it's right next to my bed) I hear slapping from the surface (I have no corys ), something hitting the glass, gravel moving around, and decor moving. HM.

 

[Sebastienb]

Found this trhread trying to find out if I should keep my moon light on all night. When I have it on and all other lights in the room off I get to see all the fish active, even my pleco which is always in one place with the regular light on moves all over the tank with the moon light.

 

[GBHammbone]

Before leaving my moonlights on at night my oscars had spooked a couple times hard enough to flip the lid open on the glass versatop. luckily did not get out, but got some pretty hardcore scars from it. and i cant believe the tops have not shattered. with moonlights on, i havent heard a glass bang in weeks. im all for them working with some kinds of fish, especially glassbangers.