reef octopus prime 200 in vs bubble magnus curve 9

I new to Hobbie I have a 180 gallon tank with live rock and live sand been cycling over month have few soft coral and fish all doing great. I have a coralife skimmer supposedly rated for up 220 gall but not doing a very good job.
I look on reefsupply.ca found bubble magnus curve 9 which rated for over 300 gallon and is cheaper than reef octopus prime 200int which only rated up to 265 gallon. Just wondering if any member ever use these two product that can give me some advice thank you in advance