It depends on the size of your tank. This was my initial dosage 2 years ago:What’s your dosing of each vinegar brown sugar per litre or gallon please Thank you
Start 25ml every night for 5 days. Then add 5ml for the next 5 days. I slowly increased the dosage each week and tested. I remembered my nitrates being above 80 ppm before I started dosing. It literally took 6 months to drop the nitrates to 20 ppm. Now I’m at 35ml every other day to keep my nitrates between 5-10 ppm. Again, this is my dosage for my tank.

