I have a 45 gallon all in one. I run both filter racks, one with chemipure and puri gen the other with chemipure and carbon . I have a small skimmer in the second chamber but it works very poorly or not at all. I have a new tunze skimmer, very nice but only fits in the first chamber. My question, should I add the new skimmer and remove on filter rack or stay as is? Now tank issues, all is good. Just trying to stay ahead of the curb and upgrade where possible.