hey i was just wondering what u guys think the min tank size should be for a RTC, my wife and i were talking to a lfs owner and he was saying 180 gallon would be fine. is this true? would a 180 g tank be ok for a RTC or would we need bigger? just curious cause i dont want to buy a tank that we are just going to need to upgrade later cause the rtc out grows it. i would rather get one that would be big enough where we wouldnt have to buy another one. thanks