My brother-in-law once had a Niger in a 55g, he wanted another trigger so I gave him my Undulated. The Undulated was half the size of the ******. In a month the Undulated killed his Niger. He was so mad he refused to feed the Undulated. Six months later he called me to come get the trigger because it wouldn't die. When I picked him up you would of swore he was over fed because how fat he was. I got ten bucks for him at Texas Tropical when I traded him back in.