With the hot craze of aquarists swarming over the purchase of this product, it is now available from our eStore in a 500mL pouch and 1000mL pouch for S$90 and S$160 respectively, and ready to ship worldwide! There was some lively commentary including a testimonial from an actual user, and even the manufacturer contribution to a post covering BioPellets in October 2009 at Reefbuilders. How it works The positive effects of NP-reducing BioPellets on water quality are based on the principle of immobilization. Waste products from the water, mainly nitrate and phosphate, are converted into bacteria. This keeps the aquarium water clean. NP-reducing BioPellets are composed of biologically degradable... Read more»