i havea res bout a year old and round 2.5 inches long is in a 10 gal tank with about 7.5 in of water is tha amount ok or too much for him i just raised from bout 5 inches
he can swim very well so that is not to much water if anything its not enough.... the tank can be almost full of water just leave enough room for a basking area but the 10 gallon is to small for ur turtle. you should have 10 gallons for every in. of turtle sooo what i would do is buy the biggest tank you can get so you dont have to keep upgrading as he gets bigger
c-glue -- More tank, more water, more heater, lights and filter. When these guys get out of their egg in the wild, they are in the water right away. They are good swimmers. When you get a larger tank you will need larger everything. These guys grow very fast.
You don't have to necessarily build anything. There are plenty of commercially available options before having to revert to building something, although the link that was posted is incredibly easy to follow with amazing results.
JAX - - - Baby Boy - January 9th, 2011! (3 months old) 1 RES - 7" long - Umi (3.5 years old) 1 black lab/hound mix - Josie (1.5 year old) 2 cats - Mysti and Molly (6.5 years old)