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

About this item 【What you will get ?】you will get 100 pieces orange balls 100 pieces gray balls ,total 200 pieces balls,these balls diameter about 0.4inch/1cm; 【Why need it?】tourmaline balls can help clean the water, and keep your tank out of impurities,suitable for most freshwater animals like shrimp, crayfish, betta, goldfish,snail; 【How they work?】when fish ,snails,shells ,shrimp live in the wild,earth’s rocks can autobalance PH value to maintain ecological health,then when we feed fish ,snails,shells ,shrimp at home,we need mineral balls,mineral tourmaline balls contain over 30 minerals ,they can keep your tank balanced just like those wild waters. 【Warm Note】:Please clean the Tourmaline Balls before you put them into aquarium tank ,they are great for aquarium decoration.