well i tried to house a 5inch alligator gar in a 175 gallon tank with my 5 inch black Rhom piranha, and it turned out to work for about 3 weeks. i fed them two to three times a day, and then just now i went downstairs to see, my gar with half a body. the dumb thing is, is that i was about to take him out and put him in his own 100 gallon till he was too big. so basically, am i a chump or what?? ha
I find it amazing that you would even think that it could work. Very sad.