When your tank gets ich, it's important to treat the entire tank, which means all of the fish. I'm confused as to why you're removing two of your fish. You would have to now treat two tanks, instead of just the one. With the heat method, you can leave all the fish in the one tank and treat accordingly.
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.... ~