Brightwell AquaticsReef BioFuel - Organic Carbon Supplement for Marine and Reef Aquariums, Aiding Bacterioplankton Growth That Promotes Rapid Phosphate and Nitrate Reduction, 2 L

Out of the 250 ml that the bottle is supposed to contain, I only received about 100. The seal looked fine, so the only explanation I can think of is mishandling during shipping by Amazon. They definitely crushed the bottle, and all the product spilled inside the package. Otherwise great product!

This stuff works well if combined with one of the many bacteria in the bottle products. I used it to help fight my cyano problem and it worked better than anything else. Consider Microbacter 7 or Stability when you purchase this. Use it every day at first, then less as problems go away.The idea is the same as Vodka dosing, but this way you can still keep the Vodka for yourself. :)

This product works well for natural nutrient reduction. I have been using for a long time. When used with Microbacter7, it will significantly increase the rate at which you see the nutrients drop. After nutrients are at a acceptable level - reduce dose!

It's been two months of using this product and my nitrates will not drop below 20. I'll give two stars because nitrates are maintaining but red sea nopox will eliminate nitrates completely. I'm switching back to nopox

It didn't work for 2 months dosing. I purchased bacteria, microbacter 7 because some people said I did not have bacteria enough. I have dosed more than a month based on instructions. The nitrate had never dropped. My case is wasting money and time. I tried vodka but nitrate is still the same. I will try red sea . Let see if it works.( update red sea no pox dosing )50 ppm dropped to 0 ppm for 3 months dosing. For two months 50ppm dropped at 5ppm. Vinegar, vodka and brightwell biofuels are certain type of carbon. Nopox has compound of all kinds of carbon. So this works with any kind of bacteria in your tank.

I was skeptical of this at first but I bought it anyway and I can tell you it really works. My nitrates were high and this has started bring them down. I have been using it along with Seachem Stability and it works great.

Been using this when it first came out. Worked

Product is good. I ordered another bottle when I ran out from Amazon. Received in soft pouch with bottle cap top split and product filling shipping pouch. Worthless.