200 Pieces Shrimp Mineral Balls For Freshwater Aquarium Tank.Tourmaline For Ph Balance.Decorate Aquarium Tank,Tropical Fish Mineral Stones

Size:These balls diameter about 0.4inch/1cm; Package include:100pieces orange balls+100 pieces gray balls.total 100 pieces ; Function:The Mineral Ball can balance the PH of the tank water;help vitalize metabolism and strengthens the immune system.The Mineral Ball can decorate aquariummake your aquarium more colorful. Easy to use and clean:These tourmaline balls will not affect the water clarity. They are easy to use and can be easily cleaned with just water as they wont cause nasties.