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PULACO 25W Small Aquarium Submersible Betta Heater with Free Thermometer Strip, Under 6 Gallon Fish Tanks (Preset Temperature 78℉)

PULACO 25W Small Aquarium Submersible Betta Heater with Free Thermometer Strip, Under 6 Gallon Fish Tanks (Preset Temperature 78℉)

Q: If it can horizontally, does that mean it can be placed under gravel/substrate?

No it can’t be under the gravel

Q: I want this for a tank with a beta - no water current. Is this going to work you think?

There is NO fish in existance that can survive and thrive without filtration...even bettas. If you have a betta and no filter, thus no water movement, you are killing your fish. Please...do some research. Don't fall prey to the misinformation that they little guys can live in a puddle. Thats as bad as saying a goldfish can live in a bowl.

Q: Will this overheat a one gallon tank?

I bought it for my 1.5 gallon tank and it made my tank 93 degrees it does not shut off like it's suppose too!

Q: It says under 6 gallons. So if i have a 6 gallon round that a bette stays in would it be good for that?

Bettas should have a MINIMUM of a 3 gallon tank WITH filtration AND heater. It is a myth that they can survive and THRIVE in anything smaller. They really should have a 5 gallon tank but if the tank is well planted with live plants to help with nitrate removal, they can live in a 3 gallon. Please do research on this. There are lots of good videos on youtube on how to take proper care of a betta and what is flat out cruelty. A bowl is basically the equivalent to keeping your dog in a closet and never scooping their poop. Except bettas have to breath it too.

Product ID: 174013013

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Details

Brand
PULACO
Special Feature
High Accuracy
Color
Transparent
Age Range (Description)
Adult
Included Components
heater
Outer Material
Glass

📏Fits 1-6 gallon tanks

🔥25W powerful heating

🌡️Preset 78℉ ±3℉ accuracy

Description

🔥 Keep your betta cozy and your tank stylish—hassle-free heating perfection!

PLUG PLAY SIMPLICITY - Just submerge, plug in, and watch the smart indicator lights do the rest.
SAFETY FIRST ENGINEERING - Fully submersible with automatic shutoff and durable build for peace of mind.
COMPACT VERSATILE DESIGN - Fits seamlessly in tanks from 1 to 6 gallons, ideal for desktop aquariums.
EFFORTLESS TEMPERATURE CONTROL - Preset at 78℉ for perfect betta comfort—no fiddling needed.
BONUS THERMOMETER STRIP INCLUDED - Monitor your tank’s temp at a glance—because your betta deserves precision.

The PULACO 25W Submersible Betta Heater is designed for small aquariums (1-6 gallons), delivering a reliable preset temperature of 78℉ with ±3℉ accuracy. Its compact, fully submersible design ensures safe, efficient heating with easy installation and smart indicator lights. Includes a free thermometer strip and backed by a 12-month warranty and responsive customer service.

Have a Question? See What Others Asked

If it can horizontally, does that mean it can be placed under gravel/substrate?

I want this for a tank with a beta - no water current. Is this going to work you think?

Will this overheat a one gallon tank?

It says under 6 gallons. So if i have a 6 gallon round that a bette stays in would it be good for that?

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