I'd say don't bother spending the money on polishing pads ... just go to walmart / kmart or an arts & crafts store and get 100% poly-fill. Inexpensive, and a 20oz bag will last you months if not a year. Just ensure it doesn't have any fire retardants. I use the fairfield brand ... blue bag.
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.