Posted: Wed Oct 31, 2007 9:35 am
First, for the water changes, buy a python. It's a long suction hose that can both empty and refill the tank by hooking up to a sink nozzle. They come in 25 and 50 feet depending on how far away the nearest sink is. It's seriously the greatest tool for tank cleaning in the world.
As for why the tank is getting so dirty- one part is that all those rocks trap debris inhibiting the filters abilities to clean. Take most of them out and just leave 2 or 3 for your RES to push around. If you're making the basking area out of rocks- stop. There's a chance they could fall crushing the turtles... you'll be safer (and give more swimming room) if you buy a floating dock. What are the GPH's of your filters? It should be 2-3x the size of the tank. If this isn't the case, you'll need a stronger filter. Finally, what sizes are your turtles? If they're too large for the tank, they're simply producing too much waste for the 40 gallons of water.
2 RES: Leo (f) and Ezra (m)
1 Russian Tortoise: Godzilla (m)