I stay in the fish forums and i never venture in here, but my little sister has had a little turtle in a tank for 3 or 4 years and ive never done anything but feed it. Usually her and my mom keep up the tank and stuff. I told my mom i would siphon the tank for her tomorrow since ill be home all day. Im also cleaning out the filter. This turtle sheds like crazy so this has to be done frequently. But when i siphon out the water, do i need to declorinate it or anything?