I have a 9" tig that i recently moved to a new tank that has some other bigger fish like a 12" gatf, 10" golden dorado, 12" juruense, 12" giraffe cat, 8" ebh, 6" silver dollars, 8" granulated cat. I see the tig constantly swimming up in a stationary position whole day against the side of the tank and is not eating? Does this mean that the tig is stressed or is it just him still adjusting to his new environment? He was in a 75gal growout tank before and he's only done the swimming up against the glass a few times. And when i first got him he already started eating the first day