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So i have somewhere between 40 and 80 ppm nitrate in my tap causing me big headaches. I have a 125 gallon tank that i that 30 gallons in per week. I have a 30 gallon container that i am going to start filling up with water and running a diy filter i built with nitrazorb size 6 in it. I will recharge it 3 times a week if i have to to get as low nitrates as possible before i add that water to the tank and start the process over. Has anyone had success with this stuff and how much could i expect it to lower the nitrates as this container will not have fish in it so nitrates will not be rising so all they can go is down.