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Review on πŸ”₯ NICREW Mini Aquarium Betta Heater: Efficient Submersible Fish Tank Heater for Small Tropical Aquariums - 15/25/35W by David Royles

Revainrating 5 out of 5

Works well so far with aquarium heaters and coolers

I've had one in a 4 gallon tank for about 6 weeks and it's holding a stable temperature at 78. No problems so far. We'll see how long that lasts. I have the 25 watt version.

Pros
  • Quality construction
Cons
  • Hard to tell