i have two 5-6 in bass i believe monos in a 100g all to themselves. the past two days when the lights have turned have they will go at it. Gills puffed out and really dark colors. Is this normal behavior? should i seperate them or what? it doesnt happen in the daytime though.
Keep an eye on them make sure they dont get beat up to badly, missing scales torn fins. Probanly wouldnt hurt to add some dithers also.