[KITKAT]

I like keeping garters in pairs, in aquaria that are "40 Long".

The 40 long is the same floor space as a 55 gallon tank, but is not quite as tall (easier to get the basking spot warm with a lamp on the top screen), and somewhat cheaper if you can find them in stock.

I don't go for anything fancy looking... I use aspen bedding, a tree branch for climbing, a ceramic bowl for water, and a plastic dish (flat with 1/2 inch sides) for non aquatic foodstuffs. (I feed live fish from the water dish and change it the next day)