I have a 120g tank with a 9" oscar, convict, and an 11" endlicheri endlicheri. I got another endli but its only about 7" or so. Needless to say, the larger one tried to eat the smaller repeatedly. I moved the smaller one to a 20 long tank (my qt, the only one without edible critters). I plan on feeding the new guy daily and keeping the tank a bit warmer while maintaining an every other day to once every 3 day feeding schedule for the 120g. Think there is any chance thelittle guy will grow enough for me to try and reintroduce him to the 120g? How long do you think I can keep it in the 20 long safely before I have to figure out what to do? All help is appreciated. Thanks