Today we are going to discuss the use of biopellets, sometimes referred to as solid vodka dosing, as well as touch on the general theory behind other forms of organic carbon dosing like vodka. Not all brands of biopellets are the same, many are made from corn or other biodegradable substances and work to various degrees Each BRS Biopellet is made from 100% pure PHA Polyhydroxyalkanoates produced by bacteria as a food source for bacteria. We believe this to be the most natural and effective substance available for use in the aquarium for denitrification. Biopellets are typically used in reactors. Disclaimer