Mine's been growing in a 240 gal. Eats like there is no tomorrow. Knows when and how the food is coming. Ignores pellets, takes only thawed fish. Takes with gusto, often until the mouth is chuck full. Swallows. If any food still around, inhales them too. Sometimes does this weird thing where it goes into the farthest tank corner away from me when I turn off the pump and drop food but comes around in 10-15 sec to start eating.
No interaction with any tank mates - leerii, wolf, tigrinus, etc.
Does not do much of anything else. At 1.5' I hope to try it in a 4500 gal with the "bad" gang - 2 jaus, 3 TSN, 2 RTC, 3 pacu, 1 peacock bass, 3 arowana, 1 TSN x achara.
Will try to shoot a video, if you'd like. Won't be too easy but should be doable.