Hyperactive Fish!

[FishyGee]

Hi,

My lights in my tank are set on a time clock and I find when they turn of my fish become much more active - particularly the barb.
It keeps swimming up to the pump then taking a ride in the curent. Doing this over and over.
The other fish are also swimming higher in the tank.
Are they stressed for some reason?
Or it may be because I gave them some Myxazin earliar to treat fin rot that a few of my neon tetra's have?
Or is this just normal behaviour?

Thanks

Fishygee

 

[FishyGee]

Please Reply!!

 

[ZoddyZod]

Increased activity when the lights go off is quite normal for lots of fish. My entire tank goes nuts and takes a minute to settle back down.....it is quite a shock to them.

 

[FishyGee]

Right. Thankyou! So it is just the shock then.

 

[swanseastilo]

Deleted

 

[alex1319]

My fish act the same when the lights are out......its just when I turn it back on is when they go crazy