^ hey there bud.... Its pretty normal for dats to do that.... though i am only new to tiger keeping... i had 3 right now. 2 6.5-7" ITs and 1pc 3" AT at the moment.... at first they usually hide or stay at the corner specially when you turn on the lights... but after they get accustomed to their new tank, they will go out and swim...
what i noticed is that you should have a good filtration for this fishes and you should have alot of patience... it will reward you once you see them stable... actually 6' is a big tank already... mine is only 3'x1.5x1.5... its pretty small compared to the tanks you guys have here in mfk... if you can try checking
www.mypalhs.com its a locally based forum here in the Philippines. the site contains alot of info about arowanas,flowerhorn,tigers and other fishes goldfish and kois too.... though some are in our vernaculars so you just have to keep up and ask around...
oh dont worry about the tiger not feeding.... when i got my previous 2 IT's i starve them for almost a month... there main diet before was kataba/feeder guppys and i dont feed those to my fish... so i starve them so that when i drop a pc of MP they wont hesitate to eat.
good luck bro and i hope you can post some pics of your tigers.... loved to see them
