Fluval M 200Watt Submersible Fish Heater

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$36.99 Chewy Price
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In Stock
FREE 1-3 day delivery
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Pay in 4 interest-free payments of $9.25. .

About This Item

Details

  • Quality heater made in Europe with quality components.
  • Sleek and compact design.
  • Submersible heater delivers excellent performance and reliability.
  • Mirror technology reflects the colors of the aquarium to enhance its appearance.
  • For fresh and saltwater tanks.

Instructions

Frequently bought together

Questions & Answers

2 Customer Questions

Is the temperature preset or adjustable?

Answer by Chewy • Dec 03, 2023
This fish heater features an easy-to-adjust temperature control dial.

Is this a fully submersible heater so I can mount it horizontally?

Answer by Chewy • Apr 02, 2024
It is not recommended to mount this heater horizontally.
Reviews
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4.4
Rated 4.4 out of 5 stars
22 Ratings
Terms & Conditions

10 Customer Reviews

Rated 2 out of 5 stars
By krystalina on Aug 7, 2025

It came outside the package

Wasn't in the original package just tossed in a box with heavy food items, you would think it would be packaged better since it's glass. Not ready to set up my aquarium

Wasn't in the original package just tossed in a box with heavy food items, you would think it would be packaged better since it's glass. Not ready to set up my aquarium yet was getting supplies needed.

Rated 5 out of 5 stars
By Jason on Jan 12, 2026

Simple design

Great looking and easy to use.

Great looking and easy to use.

Rated 4 out of 5 stars
By dylan on Mar 15, 2025

Unknown temp

Would like to know better what temp It’s running at and thermostat.

Would like to know better what temp It’s running at and thermostat.

Rated 1 out of 5 stars
By Scottie on Oct 3, 2024

82 is the hottest it will go

I bought this 200 watt heater for my 36 Gallon Discus tank. Discus need to be at 86 degrees. This heater tops out at 82 degree's. I waited 40 days after purchase

I bought this 200 watt heater for my 36 Gallon Discus tank. Discus need to be at 86 degrees. This heater tops out at 82 degree's. I waited 40 days after purchase to install. So it can't be returned to Chewy. Very Disappointing. I need to buy a new heater and you can bet I wont be buying a Fluval Heater.

Rated 1 out of 5 stars
By Rose on Nov 13, 2024

Lousy!

Never tried this brand before and could not get it to go below 86 degrees even at the lowest setting.

Never tried this brand before and could not get it to go below 86 degrees even at the lowest setting.

Rated 5 out of 5 stars
By Jennifer on Oct 15, 2024

Price

It works great and couldn’t beat the price

It works great and couldn’t beat the price

Rated 5 out of 5 stars
By Aarol on Aug 28, 2024

Goldin as it comes

Arrived with Goldin bows as it always does

Arrived with Goldin bows as it always does

Rated 5 out of 5 stars
By Dan on Jul 25, 2024

Fluval M 200Watt Submersible Fish Heater

Good price. Works well.

Good price. Works well.

Rated 5 out of 5 stars
By rockstar on Oct 19, 2024

Great price

Love fluval

Love fluval

Rated 5 out of 5 stars
By Felicia on May 19, 2024

Great brand

Functional and reasonably priced.

Functional and reasonably priced.