I have got 2 diamondback terrapins swimming around w/ a Mexican giant musk (he or she is younger then the diamondbacks and not a threat yet) but i 'm wondering how fast the diamondbacks grow so i can prepare for a new tank. I have two late 07's one is around 2inchs and the other is around 3, year by year how much do they grow? And when do they reach maturity? Thanks for reading.


