YauBay Mini Preset Aquarium Heater TH04

The YauBay Mini Preset Heater is a compact, fully submersible aquarium heater designed for small tanks and low water-level setups. Available in a range of wattages to suit different tank sizes, it maintains a fixed preset temperature automatically — no dial, no adjustment, no guesswork.

Built for Small Aquariums and Terrariums

The slim, compact form factor makes this heater well suited to nano tanks, small tropical aquariums, and terrariums where space and water depth are limited. It operates effectively in low water levels where many standard heaters would struggle.

Automatic Temperature Maintenance

This heater runs on a preset temperature — when that threshold is reached, it stops automatically and holds the water at the correct level without any manual intervention. There is no thermostat dial to miscalibrate or drift over time, keeping your water temperature consistent.

Safety Features

• Overheat protection built in — heater shuts off automatically at the preset temperature
• High-temperature-resistant casing for safe continuous use
• LED indicator light shows working status at a glance
• IP68 rated — fully submersible in water

Choosing the Right Wattage

The TH04-A10 range is available in multiple wattages to match your tank volume. Select the appropriate option from the variant list on this page to ensure the heater is correctly sized for your setup — underpowered heaters will struggle to maintain temperature in larger volumes, while the smallest wattage options are ideal for desktop or nano aquariums.

A straightforward, reliable choice for keepers who want a compact heater that does its job without unnecessary complexity — suited to both new setups and as a secondary heater in an established system.