You're right, daveski. I meant to get one with more power than the tank you're getting. They don't seem to have alot of power to me. But if you have tiny hatchlings that will struggle against a strong current, you may want the smaller light powered ones. The smallest one Tetra makes barely moves a few inches of water in a ten gallon. And you can play with how you have it set up, too. I had mine turned into a corner so the water was a little deflected against the glass, and not pushing the turtle around, since he is small. (stinkpot type musk). they come with suction cups to attach to the side, but my turtle was always trying to get behind it and pulling it away anyway, so I just made sure the cord going up was anchored down so he couldn't get tangled in it.

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