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.