Sourced a used 75 gallon tank and it has one of those junky acrylic box cornerflows. I'm going to resilicone the entire tank, and I'd like to find a round shaped cornerflow. I know theres a couple brand tanks out there with them, but no companies seem willing to sell them seperatly or even as a replacement. Any recomendations? Been watching for broken tanks FS, etc, no luck thus far, any recomendations?