Made of aluminum and will rust easily. I bought this one thinking it was the same as my other refractometer but noticed a difference in weight. The heavier one was copper, which is very resistant to rust, and this one is cheap aluminum. The difference lies not only in corrosion resistance, but also in strength and durability. I do not recommend this one, especially since it is used for salt water. If you store this, be sure to wipe dry after each use. All models weighing half a kilo are made of cheap material. Look for those that weigh 12 ounces.
Greenpro Live Potted Aquarium Plants Package - 3 Water Ferns (Bolbitis Windelov And Pteropus), Hardy Leaf For Freshwater Fish Tank
8 Review
π Accurate Salinity Refractometer for Seawater & Marine Aquariums: 0-100 PPT with Auto Temperature Compensation
3 Review
Fazhongfa Resin Aquarium Decorations: Add Style And Fun To Your Fish Tank With Castle, Robot Dog And Cave Hideout Ornament - Perfect For Small And Medium Betta Fish!
6 Review
π Accurate Digital Salinity and Temperature Meter with ATC: Handheld Pen Type Water Quality Monitor Tester for Saltwater, Hydroponics, Pool, Aquarium, Fish Pond, Spa - 0~70 PPT
5 Review
π Enomol Gravel Vacuum - Aquarium Water Changer and Fish Tank Cleaning Tool Kit, Universal Siphon Pump for Quick Aquarium Water Changing
5 Review
π Tetra No More Algae Tablets 8 Count: Effective Algae Control for Aquariums
8 Review
π Enhance Aquarium Maintenance with hygger Carbon Fiber 6 in 1 Cleaning Tool Kit β Algae Scraper, Scrubber Pad, Sponge, and Telescopic Handle for Optimal Fish Tank Cleaning in Saltwater and Freshwater Environments
5 Review
Penn Plax QN2 Quick Fish
9 Review