Heater Aqueon Fish & Aquatic · Aquariums & Kits

Aqueon

Aqueon Pro Adjustable Aquarium Heater, 100 W

Heater

Best for: Tropical tanks of about 30–50 gallons

A shatter-resistant, fully submersible heater with an electronic thermostat and automatic shut-off if it's out of water. Tropical fish need steady temperatures, usually around 75–80°F.

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Other sizes on Amazon: 50 W

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What we like

  • Shatter-resistant
  • Auto shut-off
  • Easy temperature setting

Keep in mind

  • Use a separate thermometer to check accuracy
  • Wattage needs to match tank size

Our in-depth look

Who it's for

Tropical freshwater tanks, especially in rooms that cool down at night.

Tips

A common rule is 3–5 watts per gallon. Place the heater near the filter flow for even heating, and check temperature with a separate thermometer.

Key features

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Questions owners ask

What wattage do I need?

Roughly 3–5 watts per gallon, more for cold rooms.

Does it need to be fully underwater?

It's fully submersible; follow the minimum water line guidance.

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