I just added a teaspoon of PraziPro to my 20 gallon qt. This is a preventative measure I believe, I haven’t seen anything that has me anxious. Do I need to also treat the food with PraziPro as well, or just let them swim in the water and do a second dose in five days after a water change? My copper treatment is over, this is my last plan of medication before I start adding the fish back to the DT.