Finally got to the bottom of this problem (for want of a better way of putting it....read on!!)
The very helpful guys in the aquatic shop at my local garden centre solved the problem, and it was all due to me having a thick layer of sand at the bottom of my tank. Poisonous bacteria / gases were...
Why can`t I keep Pictus catfish......arrrrrrgggggg!!!!
I bought 3 of these a couple of months back and they were fine for a while but I came home from work one day to find 2 of them dead and the other one just making a pathetic effort to bobble (slowly) about. I assumed they had been fighting...