a 55 for 2 years is horrible.55gals shud be the MINIMUM tank size for the jar.
i had a jar that kept on the 55gals 4x1x1.5 tank for abt 2 yr. (not recomended)
but itll house a jar for abt a 1 yr period only. abt a tank size for life...
180 gallon tank shud do it, around 6x2x2... though, a bigger tank is always GOOD!