I'd say you've done all you can. For future reference, the filter media should be enough... Though the extra little substrate should help. I'm not a fan of those insta cycle stuff ... So I'll say give the media a month to completely seed your new filter.
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.