I ordered a planet frag tank in April with their "ghost" overflow. Once I got it, I decided to go ahead an use a reef savvy one instead. The planet was generally larger in every dimension, did not have a cover and was pretty basic. It did not have bulkheads for the drain lines, just the two bulkheads to go into the tank, and the way they assembled it those two bulkheads could not be removed/replaced. I'm sure I could have used it, but I wanted a few more features than it had. Interestingly, on my tank the holes drilled for the planet overflow matched the reef savvy overflow perfectly.