50W Small Aquarium Betta Heater for 5/6/7/8/9/10 Gallon Fish Tank,Submersible Fish Tank Heater with LED Digital

Key features

• SAFE FOR FISH & PREVENTS GLASS BREAKAGE — Protective Plastic Casing — Unlike exposed glass heaters, this aquarium heater features a durable ABS plastic guard that shields fish from scalding and prevents large fish from cracking the quartz tube. Reduces electric leakage risk for freshwater and saltwater fish tanks.
• 50W fits 5-10 gallon nano tanks, ideal for betta fish, clownfish, guppy, and small tetra. 20/50/100W suit small tropical fish. 150/200W are recommended for angelfish, blue tang, and zebrafish in larger tanks.
• AUTO SHUT-OFF & OVERHEAT PROTECTION — No More Boiled Fish — Built-in dry-run protection automatically cuts power and flashes error code E1 when the heater leaves water. Overheat protection triggers HH code when the current temperature exceeds the set temperature, keeping your fish and family safe.
• FRESHWATER & SALTWATER COMPATIBLE — Reef Tank Safe — This submersible aquarium heater works in both freshwater and saltwater setups, including coral reef tanks, without saltwater corrosion. A cost-effective alternative to titanium tube heaters with comparable durability.
• ONE-CLICK SETUP & PRECISE DIGITAL DISPLAY — 59-93°F Temp Control — Set your ideal temperature with a single button. The LCD screen shows both current and set temperature in real time. Built-in precision probe ensures accurate readings. Red and blue indicator lights show heating vs. standby status at a glance.
• EASY SELF-DIAGNOSIS & ERROR CODES — Hassle-Free Maintenance — The display shows E1 when the heater is out of water and HH when the temperature exceeds the set point, so you can troubleshoot without guesswork. A practical fish tank heater for beginners and experienced aquarists alike.

Free shipping included. 30-day hassle-free returns.