de*nitrate, 4 L / 1 gal.

This product is very effective however Seachem does a poor job of documenting what contributes to success. It is only in their forums and not every tip is in one post, they are all spread out. These are the tips I have used on three different aquariums and they work every time. Use 4 to 5 times more than Seachem instructions if you have high PPMs. You MUST use slow flow of 20 to 40 gallons per hour, 25 to 35 GPH is the sweet spot. I use a large media reactor by Avast that holds 4 liters and use a ball valve over half closed in front of it to throttle the flow. As I put it in I put 1/8 teaspoon sugar and about half full I put another 1/8 teaspoon of sugar. Sugar is your simple carbon the bacteria feed on and grow crazy fast. Do all of this after a water change when your PPMs are below 40. You cannot fail if you do this. Those who have small PPMs does not require as much dose but you do have to reduce the flow rate. I have 38 gallon bow front, no live plants and large drift wood. I keep rainbows, gouramis, etc. my Nitrates were rising 60 to 80 PPMs each week. Once I started using 4 liters denitrate as described my PPMs drop to 0 in 3 days. Stays there for 3 months while I do a 50% water change each month. The next 3 months I continue 50% water changes each month and it rises 5 to 15 PPMs between changes. Next 3 months Nitrates rise 15 to 40 PPMs between changes. So now I know it is time to change the media or rinse it a lot and reuse. This is the most safe, effective, low cost means of removing Nitrates but it is bulky, the slow flow requires good management setting up and maintain. I am very pleased I learned how to make it work. I only check my Nitrates once a month now and water change once a month. Never had a fish die or sick. Been doing this over 1.5 years.

This thing works! My son has a 120gal tank which originally was a 75gal, on the 75 he had very high nitrates, he has live sand, live rock, stablished tank.... His nitrates were off the chart he added live sand, and no change, then he added live rock and no change, he changed feeding habits no change... The. He move to the 120gal which he basically added about 60gal of new RODI water after some water we dump, and the readings went from off the chart to about 120ppm so basically nothing was working for whatever reason...... Until..... We used this product, he went from the 120ppm reading to 40ppm in just 24hrs. That was for a saltwater fish tank, after that we used it for another 60gal tank that had high readings because of low maintenance, so I used it and the readings went significantly down as well.... Excellent product!

My water is usually pretty nitrate free, but I like to make sure. Any way, this keeps it health. luck

I’m going to test my nitrates again just to make sure.I want to start by saying my 300 gallon pond is over-filtered and jammed with pothos. I bought this because I was still battling 80 ppm nitrates with my goldfish (go figure, they’re messy)I bought this and noticed they can’t be in a filter with high flow rate (that sucks huh?). So what I ended up doing was shoving a LOT in panty hose and let them sit on the floor of my pond, letting water flow through it. I also put some in a filter with more GPH than recommended.The rocks eventually turned blue. I forgot about them and tested my nitrates about a month later. 0. Unbelievable, I have huge goldfish that I feed three times a day.

Once I started to faithfully use this in my 75 gallon tank I was able to control the nitrates in a reasonable level. I just bag this next to back charcoal and ammonia treatment bags. I don't have a high flow rate filter which I believe helps.

This stuff is not all that great... ive had it for a while and it doesnt do much. AZ-NO3 is a much better nitrate remover.

This keeps all my tanks nitrates under control, fresh, brackish abnd salt water tanks. I have it in my filters as a main media!!

If use properly, this work and does what you need it to and SAVES YOU ALOT OF MONEY!! Instead of going to your LFS.