I've had my 40g breeder tank set up for a few months now and it has been doing well, but I still don't have a skimmer. I have bought a few then had to return them because they don't fit. I have a glass hood on my tank, whcih is necessary because my cat will jump in if it take it off or put on a screen (trust me, it happened twice). The problem is that none of the skimmers I have tried or seen will fit in the tank with the approx 2" clearance I have in the back behind the hood. Anyone know of a skimmer that doesn't stick out too far and will work with a hood?