Review on Zoo Med Natural Maintenance 24 Ounce by Carol Miller

The calcium carbonate in this material will cloud the water, especially as the pellets are too large for some turtles to eat in one bite, leaving excess food at the bottom of the tank. Exo Terra branded pellets don't have this problem but are more expensive. Luckily, comet goldfish love it, and adding a single fish to your aquarium can clean up the mess and prevent cloudy water, allowing you to buy cheaper food.