The feeder, when placed in your aquarium will dissolve slowly releasing small particles of food. One shell feeds 15 average size fish in a 50 to 60 litre aquarium for 2 to 4 days depending on the pH and water temperature. For best results, the water temperature should be 22°C or higher and the pH withing the range of 6.8 to 7.2. As well as feeding your fish the ingredients will help neutralize and purify aquarium water.
NOTE: All fish benefit from a 25% fortnightly water change. Use Aquarium Aquadine Anti-Chloride to detoxify the tap water.