What canister are you considering?
You can put the HOB
filter media it in the tank, but that's not a look I'd like and may take longer to seed the filter. I'd rather stuff it in one of the media trays so it's out of sight and seeds faster.
75g Planted Barbs Denison, BlackRuby, Tiger, Albino Tiger, Green Tiger, Cherry, Gold, Checkered, Odessa.
NonBarbs Cardinal, Neon, RummyNose, Bloodfin Tetras, Z. Danios. 1RTS. Amano, Bamboo, Ghost & RCS. 20g Long Shrimp Tank RCS, Tiger, Amano.