Anyone has a skimmer in BC 8 Gallon?? I would like it to be installed at the back in either section 1 or 2. I recently received a Free used Current Nano Fission Skimmer from a friend, but it doesn't fit in any of the section at the back WELL. When I place it in section 2 of the back, it produce too much micro-bubble to the tank. Can anybody give me a suggestion on which skimmer to use??