Pros

  • โ€ขGood for tropical fish, maintaining a suitable temperature range of approximately 78 degrees.
  • โ€ขDescribed as a 'great little heater' by some users highlighting effective performance in smaller aquariums.

Cons

  • โ€ข15% of reviews mentioned the heater doesn't keep a constant temperature.
  • โ€ข15% of reviews criticized the lack of adjustability for temperature settings.
  • โ€ข10% of reviews reported poor accuracy in temperature regulation.
  • โ€ข10% of reviews mentioned issues with overheating.
  • โ€ขSuction cups were noted as unreliable by 5% of reviews.

Bottom Line

The Tetra HT Submersible Aquarium Heater is appreciated for its straightforward use in maintaining a stable environment for tropical fish, but it can suffer from temperature inconsistency and lacks a manual temperature adjustment feature. Consider these limitations if precise control over your aquarium conditions is necessary.

Lowest at Amazon
$9.42 at Amazon
Lowest at any Popular Retailer
$9.19 at Pet Smart

Where to Buy

Prices last updated: August 1st 2025 7:03 pm
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