Building up a 20 long sump for a 40 gal. breeder. Never used either of these roller mats, but maybe someone has and could give some insight to which might be best. I am leaning towards the Bubble Magus since it appears to be better suited for the 40 gal. I am shooting to run 160 to 180 gal per hour through it.
Edit: Bubble Magus SMALL gen 2
Edit: Bubble Magus SMALL gen 2