Around what size would a dragon need moved out of a 20 gallon long tank? IIRC they're about 30 inches long by 12 inches wide, but i could be mistaken. She's currently small still, maybe 10-11inches or so and comfortably moves around the tank. Im debating waiting it out till my fish tank is empty for her to take that 70 gallon tank, but she would likely be around 2 years old before that happens (she is almost 7 months now). Outside this 20 gallon tank and the 70 in the house, there isnt much room for anything else... so Id like to start figuring stuff out asap.