I am setting up a Reefer 350 with a Trigger Platinum 26 auto fleece roller sump. I am having a hard time deciding on if I should get the Reef Octopus Elite 150sss skimmer (varios pump) or the Akula Ultra Reef Skimmer 160 or 180. I have heard that you should undersize your skimmer when using a fleece roller. The reef octo is rated for 75 gal at heavy load. The 160 is 53 gal and the 180 is 78 gal at heavy load. I have a reef octo varios return pump already and like it. Any help/insight would be appreciated