Orca Labs

Orca Labs Nitra-Guard Titanium Bio Cubes (1000ml)

In Stock UPC/EAN: 0781718087568
$ 73.90
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Nitra-Guard specially formulated for reef aquariums where phosphates are negligible.

BIO-Cubes are made from 100% biologically degradable polymers that effectively remove both nitrates and phosphates from both marine and freshwater systems. BIO-Cubes have a very high surface area and contains 400% more carbohydrates than any other brand, making it the best product of it's kind in the world. Independent testing in real world scenarios, have proven BIO-Cubes to far outperform all other competing products. No other product of it's kind can compare with the explosive performance that BIO-Cubes can offer. BIO-Cubes are very versatile and can be used in filter bags and fluidized reactors. BIO-Cubes require no maintenance and require no feeding dosages making it the easiest and most convenient nitrate and phosphate removing product on the market. Nitra-Guard BIO-Cubes comes with a free filter bag with every jar.

Bacteria consume the high carbohydrate source found in the BIO-Cubes and form a biomass that absorbs nitrates and phosphates from the water in the aquarium. This biomass is then skimmed out with a protein skimmer or is consumed as a food source by corals and clams.

When culturing bacteria, two of the most important factors that will determine the size of the colony are surface area and food source. BIO-Cubes look like small open celled sponges giving the product a massive surface area. BIO-Cubes also has 400% more biologically available, insoluble polymer carbohydrates than any other product in the world. These 2 factors create conditions that are perfect for culturing and sustaining large bacteria colonies required to effectively remove phosphate and nitrate from aquariums. It is these 2 factors that have made Nitra-Guard BIO-Cubes the world's best carbohydrate based nitrate removing media. Independent tests that were performed in real world scenarios revealed that BIO-Cubes had the ability to reduce nitrate levels from 60ppm to below 5ppm in 2 weeks while competing products claim to only start working after 2 weeks!


  • The world's fastest and most effective carbohydrate based nitrate remover
  • More economical and effective than any other product of it's kind in the world... nothing can compare!
  • Reduces 50ppm Nitrate to 0ppm within 3 weeks in Freshwater and Seawater systems
  • Easy and convenient to use, no daily feedings or dosing's, just add as directed and enjoy 4-12 months Nitrate free water!
  • 100% natural, biological Nitrate removal
  • No effect on pH or alkalinity
  • MASSIVELY reduces water changes
  • 1000ml jar treats approximately 80-240 gallons
  • Designed for when phosphate levels are very low (less than 2% of total nitrate)


The amount required will depend on stocking densities and amount of food added to the aquarium. For heavily stocked tanks, use 3ml to every liter of aquarium water and for aquariums with lighter stock loads, add 1ml to every liter of aquarium water. For best results, use Nitra-Guard BIO-Cubes in a denitrator reactor and commission the denitrator as specified by the manufacturer. If the BIO-Cubes are to be used in a filter bag or reactor, place them near the protein skimmer to assist in removing the nitrate and phosphate rich biomass faster. After 1 to 2 weeks, the bacteria colonies will become prolific enough to start lowering nitrate levels in your aquarium. If nitrate and phosphate levels in your aquarium are high, some cloudiness may occur which clears in a few days. Soak BIO-Cubes in freshwater for 24hrs before use.

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