I've upgraded many times switching the existing stock in one tank to a new tank.
The easiest method is to just get the new tank set up with your substrate, decor, plants, and the canister filter. Get it running, then hang the 10 gallon filter on the back of the new tank. Move all your fish over. Voila. Instant cycle most likely.
75: blood parrots, featherfin cat, emperor tetras, turquoise rainbowfish, BN plecos, japanese trapdoor; 46: WCMM, gold inca snails, ghost, bamboo & amano shrimp, kuhli loaches, rummynose & ember tetras, endlers, platies, flame gourami, guppies; 16: pygmy, peppered, loxozonus corys, otos, assassins, RCS ... ~ Research PRIOR to purchase.... ~