how to calibrate the heater temperature ?

It should come pre-calibrated out of the box. Just plug n play setup.

Will it work in a sump setup?

Yes, it would make a great sump heater.

I have had my 1000w heater in my tank for almost 3 months. Today the controller went dark with a faint flashing light. Does not work what can I do?

Hello, hygger offer one year warranty against any defects, if any problem, please feel free to contact me.

Would 800 watt be too big for 75 galloon tank with 29 gallon sump ? I undertsand it's a lot more than needed but I intend to upgrade to a 180 soon.

I have my 800w in a 75g without any problem. Well, the only thing is, that you must turn it off when doing water change, because at have tank start overheating.

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Aquarium Heater 300W/500W/800W/1000W, Submersible Fish Tank Heater | with Digital LED Controller and Intelligent Leaving Water Automatically Stop Heating System, for Freshwater and Saltwater

Product ID: 479095175

Details

Brand
hygger
Color
Black
Item Length
10.8 inches
Material
Quartz Nickel
Wattage
300 watts

💡Digital LED precision control ±1°F

🔥300W rapid heating power

🛡️Auto shut-off for overheating & dry run

€ 133.53

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

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Description

🔥 Keep your tank perfectly cozy—because your fish deserve the best! 🐠

ALL INCLUSIVE SETUP KIT - Comes with controller, suction cups, bracket, and hook—everything you need for a sleek, hassle-free installation backed by a 12-month warranty.
SAFETY FIRST SMART TECH - Automatic power cut-off when water exceeds 94℉ or heater is out of water, protecting your aquatic friends from harm and giving you peace of mind.
VERSATILE COMPATIBILITY - Perfectly sized for 40-80 gallon freshwater and saltwater tanks, with multiple wattage options to fit your aquarium’s unique needs.
PRECISION TEMPERATURE MASTERY - Adjust from 59℉ to 93℉ with ±1°F accuracy via an intuitive LED controller—no more guesswork or water dips.
DURABLE EXPLOSION PROOF DESIGN - Crafted with quartz glass and nickel-chromium wire for fast, safe heating that lasts—plus a protective guard to keep fish safe from burns.

The hygger Aquarium Heater offers powerful 300W heating with precise digital temperature control and intelligent safety features like automatic shut-off to prevent overheating or dry operation. Built with explosion-proof quartz glass and nickel-chromium wire, it ensures fast, reliable heating for 40-80 gallon freshwater and saltwater tanks. Complete with mounting accessories and a 12-month warranty, it’s the smart, safe choice for professional aquarists who demand quality and peace of mind.

Specifications

ASIN	B0BF49CGLY
Best Sellers Rank	#9,239 in Pet Supplies ( See Top 100 in Pet Supplies ) #15 in Aquarium Heaters
Brand Name	hygger
Color	Black
Customer Reviews	4.1 4.1 out of 5 stars (590)
Included Components	1Heater, 1Controller, 1Controller holder, 3Suction cup, 1*Hook
Item Length	10.8 inches
Item Type Name	aquarium heater
Item Weight	2.2 pounds
Manufacturer	hygger
Material Type	Quartz, Nickel complex, Plastic
Model Number	HG-043
Part Number	HG-043
Unit Count	1 Count
Warranty Description	1 year warranty
Wattage	300 watts

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TrustScore 4.5 | 7,300+ reviews

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The delivery time was excellent, and the packaging was secure.

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€ 133.53

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

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