If done correctly, the test results are good. I did bring a sample to our local lab (I work in the water/wastewater industry so have an "in" with the lab down the street). Their test results matched my API master kit results. Can't argue with that.
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.... ~