I’ve been researching and watching videos on the Tunze power heads as I’m leaning towards a pair of 6255s for my 360 build. The only downside is the cord in the tank. My game plan was to drill access holes in each top corner brace of my acrylic tank to run the power cords through. What I don’t know and can’t seem to find is whether the power cord that runs from the power head to the controller can be disconnected or is it hard wired? Looking for somebody with experience with them to help me out here? Thanks