well i got home yesterday from work and found my large pangasius dead. He was nose down in the sand in the back corner of the tank and my pleco was next to him on the glass. The pleco wasn't eating on the pang, just chillin' on the glass next to him. I dont know what happened. I checked the levels in the tank and everything was normal and where it's been for the longest time. Somethings going on and i've got to figure out what. In the past 2 weeks i've lost the pang, 2- 2.5" madagascar rainbows, 1.25" blue ram, 2" blue ram, and 3- full grown black neons. The only thing that has changed over the past few weeks is i added 2 small silver tipped sharks. If I loose another fish I'm get out and set up my 10 gallon just for those 2 fish and see what happens.
I've had that pangasius since x-mas of '04 and was just under 6" long.