Aquarium Pharmaceuticals, The 3-Day Pyramid Fish Feeder, 4 Count @$2.65

This product will automatically feed fish for a weekend or approximately three to four days. It can be used for either freshwater or saltwater fish.

Ingredients: 
Calcium sulfate plant protein products ground corn Corn Gluten meal Soy Oil Dicalcium Phosphate Ground Limestone vitamin a supplement vitamin d3 supplement riboflavin supplement niacin supplement Calcium Pantothenate etc. 

For more details :www.freshmarine.com