
Aquarium Accessories Natural Substrate Aquatic Gravel for Aquascaping. Non-Toxic & Eco-Friendly: Made from natural stone, safe for fish and does not affect water pH. Versatile Usage: Suitable for freshwater, saltwater aquariums, ponds, terrariums, and gardens. Customizable Colors: Available in White, Black, Gray, Red, Brown, Green, Yellow, and mixed colors. Multiple Size Options: Particle sizes range from 1-3mm up to 9-12mm to fit various needs. 2-Year Warranty: Comprehensive 2-year warranty coverage for worry-free after-sales service. Free Samples Available: Customers can request free samples to test product quality before ordering. OEM & ODM Services: Full customization, minor customization, and flexible customization options available. Fast Delivery: Standard delivery time is 3-15 days, with peak season lead time within 15 workdays.