by craig_uk on Thu Jan 17, 2008 4:15 am
Your tank temp is a little high actually, bring it down to about 78 - 79 (allows the water to hold more oxygen)
How big is your tank?
Any other things for your fish to interact with? fish, golf balls, bubble wall?
I have to liken single specimen fish to battery hens - often deprived of stimulation and space.
A few more details might help on this one.
saying that, i had an oscar who would go bask in the sun light.