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An adjustable USB aquarium heater with a long cord and a black housing is shown submerged in water above a red fish.
Black adjustable USB aquarium heater with a long wire and a 10W output
Three versions of an adjustable USB aquarium heater are shown: suction cup fixing, mini size, and external controller.
Comparison showing the wrong way versus the right way to fully submerge an aquarium heater for fish tanks.
An adjustable USB aquarium heater is shown with various fish tanks and aquatic plants.
Three adjustable USB aquarium heaters SC07A, SC07B, and a power adapter are shown.
Black adjustable USB aquarium heater with a cord and a 10W power rating
Black adjustable USB aquarium heater with 10W power and 3.8L capacity
Black adjustable USB aquarium heater with a long cord and 10W power output
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Adjustable USB Aquarium Heater for Fish Tanks

Regular price €34,99 Sale price €29,99 – €44,99

Why customers love it

Maintain perfect water temperatures effortlessly

Create the ideal aquatic environment for your fish with precise, stable temperature control.

  • Achieve precise temperature regulation between 18°C and 34°C.
  • Powered by a convenient USB plug for simple, reliable operation.
  • Constructed with high-quality quartz material for safety and longevity.
  • Compact design is perfect for small desktop tanks and feeders.
  • Suitable for both freshwater and saltwater setups.
An adjustable USB aquarium heater with a long cord and a black housing is shown submerged in water above a red fish.

Why Choose Our Adjustable Heater

Precise Control

Regulates water temperature accurately within your desired range.

Easy USB Power

Operates simply via a standard USB connection for convenience.

Durable Material

Built with high-quality quartz to ensure a safe and reliable lifespan.

Versatile Use

Works perfectly for various freshwater and saltwater tanks.

Product Specifications

Technical Details

Key attributes of the submersible heater.

Temperature Range
18°C to 34°C
Power Source
USB Plug
Material
Quartz
Power Specification
5V-2A USB

Our worry-free shopping promise

If your order arrives damaged, defective, or not as described, contact us within 14 days and we will make it right with a replacement or refund.

Frequently Asked Questions

Answers to common questions about your new heater.

Is this heater safe for sensitive fish?

Yes, the unit is designed with a safe and reliable construction using high-quality quartz material to ensure stability for your aquatic pets.

Can I use this for saltwater tanks?

Yes, the heater is suitable for use in both freshwater and saltwater pet tanks, depending on your specific needs.

How do I adjust the temperature?

The unit provides precise regulation within a set range (18°C to 34°C). Ensure you set the desired temperature within these limits for optimal performance.

What kind of USB connection is required?

The heater is powered by a standard USB plug, making it easy to operate with common USB power sources.

Shipping & returns

Shipping

  • Delivers to Saksa (based on your selected country/region).
  • Estimated delivery: 3–15 business days after dispatch.
  • Shipping cost: Free.

Returns

You can request a return within 14 days after delivery. Standard returns have a €4.00 EUR (approximately $4.66 USD) flat-rate return shipping fee, deducted from your refund. Return shipping is free for items that arrived damaged, defective, or incorrect. Items should be unused and in original packaging where possible. Contact us before sending anything back.

Shipping policyReturn & refund policy

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  • 5 stars: 12 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
L
Lottie Wisoky

Very small and neat

Lottie Wisoky review photo Lottie Wisoky review photo
D
Diamond Walter

Small heater, arrived well packed, seems working

D
Darrell Brown

Looks great. Small and you can adjust the temperature.

E
Eugene Koss

Working well. May buy for another mini tank.

Y
Yuri Thiel

It's small and has temperature control, which is nice.

J
Jesse Will

It's just usable haha. I think it should be used in a small 3~4 liter fish tank.

R
Reynaldo Homenick

Excellent product and perfect!! I bought it for my fighting fish I am very satisfied it heats really well exactly to the temperature I set it.. there is a small deviation but it's not that significant

T
Tamela Zboncak

Super fast shipping and excellent product... Thank you very much!

J
Juliane Jones

Fast shipping, well-made package, impeccable item, and good communication.

H
Hubert Corkery

Excellent for small sinks.

M
Marty Casper

It's small and cute.

Perfect size for my fish tank

C
Cecil Toy

Super fast delivery. Item matches the description exactly, thank you.