?After service?:If you have any questions, please contact us by email, we shall solve for you asap.We hope that all customers who wear our crystal earrings can be healed and happy everyday. ?Fluorite?:Fluorite is a stone known for clarity and mental enhancement. Its ability to assist the clearing of negative energy and aiding in decision-making has made this a favorable stone to work with. Fluorite will allow the mind to flow freely to balance thoughts and ideas. ?Aquarium Gravel?:These natural crystal stones have many uses, ll kinds of balance the chakras ,counteract negative energy,crafts DIY, aquarium gravel, fountain, fish tank stones,flower pot or any other home decoration. ?Healing Crystal?:These stones are smooth, tumbling, polished quartz crystal stones.Material:Rose Quartz,Amethyst,Tiger Eye ,Clear Quartz,Blue solidate, Fluorite,Obsidian,Mix-color,Obsidian,Red jasper,Carnelian.Crystal Size: 7-9cm(2.75"-3.55”). Weight:0.44lb. ? Reminder?:0.44lb crystal stones is only enough to fill a small fish tank. If you want to fill a large fish tank, please purchase the corresponding quantity according to the size of the fish tank.It is made of natural raw rough stones.Natural crystals and healing stones.Due to the nature of gemstones, carvings may slightly vary in size, color, and shape.Best Sellers Rank: See Top 100 in Pet Supplies. : B09VGM3J1W. Manufacturer: YATOJUZI. Date First Available: August 18, 2022. Package Dimensions: 4.88 x 4.33 x 0.67 inches; 4.8 Ounces.