At first they seemed only a degree or two apart, but in a relatively short time they collapsed. I bought these to monitor my daily tank temp for safety and thought my heater was badly faulty when I saw readings over 100 degrees. Sometimes you get what you pay for. Edit: One thermometer now reads 100, another reads over 140.
π 6 Pack AQUANEAT Aquarium Thermometer - Reptile & Fish Tank Digital Thermometer with LCD Display for Terrarium Water Temperature Test
9 Review
Lush Live Aquarium Plants: Pest & Algae Free Greenpro Tissue Cup With Lagenandra Meeboldii, Anubias, Cryptocoryne, Bucephalandra & Piptospatha Ridleyi
17 Review
Thermometer RST 01077, white
21 Review
π‘οΈ Lifegard Aquatics Digital Temperature Alert
9 Review
π Enomol Gravel Vacuum - Aquarium Water Changer and Fish Tank Cleaning Tool Kit, Universal Siphon Pump for Quick Aquarium Water Changing
5 Review
Penn Plax QN2 Quick Fish
9 Review
Aqueon Siphon Vacuum Gravel Cleaner Mini: Compact 5-Inch Cleaning Solution
9 Review
π 1-Count Container of Glass Aquarium API Algae Scraper
4 Review