Is the quarantine medication trio (Fritz paracleanse, Mardel Maracyn, and Ich-x) safe for beneficial bacteria and plants? I’m mostly worried about the Mardel Maracyn because many have said it does harm beneficial bacteria as it’s active ingredient erythromycin can attack nitrifying bacteria. Some say it only affects beneficial bacteria in newer tanks which I may fall into that category as my tank just finished cycling. I figured I could use the medication trio in my cycled, planted tank for my betta fish as it will be the first fish introduced to the tank but how is that possible if Mardel Maracyn affects beneficial bacteria? I really wouldn’t want to have to fish - in - cycle if the maracyn were to kill the beneficial bacteria with the betta fish in the tank. Thanks 🙂