What is the difference between Trico 20 and Nuovo Tricofood? They both say that they treat trichomoniasis?

Nuovo Tricofood is a liquid. Trico 20 is a powder. They are extremely similar products. Most breeders prefer to use the liquid products because they find them more convenient and easier to give to their birds.

The same goes for Nuovo Apacox (liquid) and Apacox 20 (powder), for Zoofood P/L (liquid) and Euspir 20 (powder), for Apasyl (liquid) and Apasyl Plus (powder), and for Nuovo GR (liquid) and GR Micro (microencapsulated powder).