Hydor Micro & Mini Aquarium Slim Heater
Mini tank heater works, but untested for larger contexts
The Fluval M 200Watt Submersible Fish Heater has mixed reviews, with some users praising its functionality and price, while others complain about temperature inaccuracies and durability issues.
Users appreciate the affordability of the heater.
The heater does not reach the expected temperature.
Concerns about the durability of the heater.
Factors: hardness & glass
"It works great and couldnβt beat the price"
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If you need a heated tank only for fish that can do with lower temperatures, and you find this heater functional, then itβs a reasonable buy; else you may want to look elsewhere.