Posted: Thu Apr 03, 2008 1:11 pm
If your tank is only 20 gallons & you plan on upgrading to a 120 gallon tank soon, then I would just do 100% weekly water changes till you get your new tank. Chances are, with a turtle needing a basking platform, you only have to change out about 10-12 gallons of water & that's not a lot of work.
I have a 20-gallon tank for my aquatic frog right now, and it isn't a lot of work to maintain the tank which is why I suggested this.

Kristin's Pond! Starring:
RES = "Sheba", 21+ yrs. old
African Clawed Frog = "Prog", 10 yrs old
& "Kristin" as Momma