Hi Guys. Since this is an american fish I belive it's more common in your tanks. I am fascinated by it but right know I can only aford a 176 gallon tank. I know it needs more but I also know that inspite the very young growing to a rate of 0,9mm a day, there is a time that it reaches some sort of plateau (acctually it's note that it stops grwoing but the growth rate decreses). My question is how long could I keep a pair of gars in a 176 g before I have to update it?)