200W Aquarium Heater for 20-40 Gallon with Auto Shut-Off When Leaving Water—Submersible Fish Tank Heater, Dry-Burn & Overheat Protection, Explosion-Proof, Freshwater Saltwater Turtle Tank

From the brand

HanLeShuKa Aquarium Heater

All for fish

Just for the joy the aquarium journey.

We hope every aquarium lover is happy.HanLeShuKa committed to the design,development and production of aquarium products.

We have a strong design,manufacturing and after-sales team,dedicated to providing better aquarium products and better service! We also export to many countries.

HanLeShuKa started in 2008, focus on aquarium products supply. Dedicated to build a professional & reliable equipment brand.

Our aquarium products include aquarium heate r, aquarium filters and fish tank water pump.

AII products we offer,are strictly tested and long term used before bulk supplying. We are focused on providing reliable aquarium equipment to all aquarium fans and help them to create a pleasant aquarium environment.

Product Dimensions ‏ : ‎ 11.61 x 6.58 x 2.3 inches; 1.26 Pounds
Item model number ‏ : ‎ HA-a1
Date First Available ‏ : ‎ September 24, 2025
Manufacturer ‏ : ‎ HANLESHUKA
ASIN ‏ : ‎ B0DL5HV2ZD
Best Sellers Rank: #18,489 in Pet Supplies (See Top 100 in Pet Supplies) #22 in Aquarium Heaters
Customer Reviews: 4.4 4.4 out of 5 stars (84) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
🌻【Leaves Water? Power Cuts Instantly — Auto Restarts When Submerged】 Most submersible aquarium heaters keep running when exposed to air during water changes or evaporation — causing meltdowns, cracked glass, or fires. This aquarium water heater has a built-in sensor that shuts off power the moment it leaves the water, with an audible alarm to alert you. When re-submerged, it auto-restarts at your previous setting. Your fish and turtles stay safe even when you’re not watching.
🌻【Triple Safety: Dry-Burn Prevention + Overheat Protection + Max Temp Stop】 Three independent layers protect your fish around the clock: (1) Dry-burn prevention shuts off heating when heater is out of water and restarts when re-submerged, (2) Overheat protection stops heating the instant water exceeds your set temperature by 1°F, (3) Max temperature limit automatically stops the heater at its highest settable temperature — even if the controller malfunctions. Every alarm is audible.
🌻【±1°F Precision — Red Means Heating, Green Means Ready】 The external digital thermostat controller shows real-time water temp and your adjustable target simultaneously. Digits glow red while heating, switch to green when reached — check your tank from across the room. Intelligent frequency conversion continuously adjusts power for smooth, stable temperature control, eliminating the 3-5°F swings that stress shrimp, axolotls, and sensitive fish.
🌻【Seashell Guard — Protects Fish, Maximizes Water Flow】 The unique seashell-pattern ABS guard wraps around the explosion-proof 2mm quartz glass element. Its contoured shape directs water flow evenly for efficient heat distribution while preventing fish and turtles from touching hot surfaces. Built for long-term freshwater and saltwater use without corrosion.
🌻【200W Fits 20-40 Gallon — 5-Minute Setup, Any Tank】 Choose your wattage: 100W for 10-20 gal, 200W for 20-40 gal, 300W for 40-70 gal, 500W for 70-120 gal. This heater for your fish tank works with betta fish tanks, tropical fish, and small fish tank setups. Fully submersible for freshwater, saltwater, and brackish. Install with suction cups, set temperature, done. Switch °F/°C in 2 seconds.