Wrasses handle prazi fine. It is an advisable part of qt.Thank you very much for the article! My husband and I just purchased our first two wrasses. We have a very small (1" to 1 1/2") yellow coris wrasse and a larger filamented flasher wrasse in our QT. We have a sand box in the QT, as well. I want to dose prazipro, but I heard wrasses can be sensitive to prazi. What would you suggest? Thanks