In terms of the ceramic media ... there's a bunch you can use. What model canister are your running? I run Fluval Biomax on mine with no issues ... I personally don't get too caught up in the ceramic media. What I have I feel is fine and I don't see a need to switch. However I will say that few members have highly regarded seachem matrix as great ceramic media ... worth a look.
In terms of Polyfill ... I definitely recommend it! I just did a filter maintenance last night and am still surprised at all the fine particles/detritus it captures. It really gives the water that extra polish ... IMO
skip buying any from LFS
as I feel they're overpriced. I got a 20oz bag of fairfield brand 100% poly-fill at Michaels Arts/Craft for like $6 and it will last me months! Just make sure it doesn't have any fire retardants.
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.