At the moment, I only have a 180gal with 2 sumps (one for semi terrestrial plants).how big of a tank do you have? I would do a sump, I’m just so paranoid about bypass.
filter rollers (I’ve also seen them called “sump-rollers”) look cool.
Damnit now I’m back at square one with sump vs canister.
for brackish and salt I’d do a sump no questions asked. But for fresh I’m on the fence

Before moving, when in the states I had about 20 tanks, and would usually run between 3 and 5 tanks per sump, average 100+ gallons each, 300 to 500 gallons per sump.
Although I would often ad a separate refugium/sump (with terrestrial and aquatic plants, invertebrates, fry) beside the filtraion/equipment in tandem with the sump line, if the fish (in my case cichlids) would destroy plants.

