Get yourself a cheap, appropriately-sized calcium reactor. These can be found online really cheap.
http://www.thatpetplace.com/calcium-reactor-500-gallon
I have the 250 gallon model running on my 60g. I paid $50 for mine when Premium Aquatics was running a closeout sale. Anyway, fill the reactor with De-Nitrate and set it up as directed, using De-Nitrate instead of Calcium. You totally disregard the CO2 line. Basically, what you want to do is set up the reactor with enough media to establish a culture of anaerobic bacteria. Set your drip at 30 drops per second to start and leave it there. It will take a while, possibly 8 weeks or more for you to start seeing any drop in your nitrate levels, but once the culture is established enough to start bringing down your nitrates, you can increase the drip to 60 DPM and go from there. I keep mine at around 90 DPM and increase it to 120 DPM if I start seeing any hint of nitrates in the tank, then drop it back to 90 when they go back to 0. It's a feeling out process, but once you have it figured out, it is truly "set it and forget it". My nitrates have been 0 for about 3 months now and I have doubled the amount of corals and fish in my tank in that period. It is self-regulating, based on the amount of nitrates in the tank. You don't have to mess with sulfur or carbon feedings, sulfur smells or anything else. Just leave it, be patient and let nature take it's course. You don't change out the De-Nitrate either, ever. As I said, I have the 250g model on my 60g and have ZERO nitrates. I also have a trickle filter with bio-balls and feed my fish 3x/ day and LPS corals weekly with blackworms. They love them. I also like to feed some gut-loaded live brine to my fish once a day. Now, if I could only figure out how to get rid of those damned bristleworms.
http://www.thatpetplace.com/calcium-reactor-500-gallon
I have the 250 gallon model running on my 60g. I paid $50 for mine when Premium Aquatics was running a closeout sale. Anyway, fill the reactor with De-Nitrate and set it up as directed, using De-Nitrate instead of Calcium. You totally disregard the CO2 line. Basically, what you want to do is set up the reactor with enough media to establish a culture of anaerobic bacteria. Set your drip at 30 drops per second to start and leave it there. It will take a while, possibly 8 weeks or more for you to start seeing any drop in your nitrate levels, but once the culture is established enough to start bringing down your nitrates, you can increase the drip to 60 DPM and go from there. I keep mine at around 90 DPM and increase it to 120 DPM if I start seeing any hint of nitrates in the tank, then drop it back to 90 when they go back to 0. It's a feeling out process, but once you have it figured out, it is truly "set it and forget it". My nitrates have been 0 for about 3 months now and I have doubled the amount of corals and fish in my tank in that period. It is self-regulating, based on the amount of nitrates in the tank. You don't have to mess with sulfur or carbon feedings, sulfur smells or anything else. Just leave it, be patient and let nature take it's course. You don't change out the De-Nitrate either, ever. As I said, I have the 250g model on my 60g and have ZERO nitrates. I also have a trickle filter with bio-balls and feed my fish 3x/ day and LPS corals weekly with blackworms. They love them. I also like to feed some gut-loaded live brine to my fish once a day. Now, if I could only figure out how to get rid of those damned bristleworms.
