Night Time Swimming Habbits

[Luke_e]

At night, 1 or 2 of my neon tetras swim upright. They dont have swim bladder as they can swim fine during the day and are happy, but at night if i go down they seem to be 'sleeping' in an upright position. Anyone else noticed this?

 

[CatLover]

Mine never did that

 

[imouse]

My Neons and my Glolights do this from time to time, they drift in a nose down shoal.




mouse