![Fluval M50 Submersible Heater, 50-Watt Heater for Aquariums up to 15 Gal., A781 7445035654614 | eBay Fluval M50 Submersible Heater, 50-Watt Heater for Aquariums up to 15 Gal., A781 7445035654614 | eBay](https://i.ebayimg.com/images/g/9yIAAOSwnhxjvKgE/s-l1200.webp)
Fluval M50 Submersible Heater, 50-Watt Heater for Aquariums up to 15 Gal., A781 7445035654614 | eBay
![[FS] - San Diego 92109 - $70 - 10 gal rimless tank set up w/ lid, mat, Aquaclear 20, Fluval M50, Nicrew ClassicLED 18-24" (broken down, pics/info in comments) : r/AquaSwap [FS] - San Diego 92109 - $70 - 10 gal rimless tank set up w/ lid, mat, Aquaclear 20, Fluval M50, Nicrew ClassicLED 18-24" (broken down, pics/info in comments) : r/AquaSwap](https://preview.redd.it/4j5w7tiz7qf61.jpg?auto=webp&s=2dabed42ca55fe836b1dcb40c9bf68c69b7eb166)
[FS] - San Diego 92109 - $70 - 10 gal rimless tank set up w/ lid, mat, Aquaclear 20, Fluval M50, Nicrew ClassicLED 18-24" (broken down, pics/info in comments) : r/AquaSwap
![Fluval M50 Ultra-Slim Submersible Aquarium Heater - 50W Underwater Heater for Aquariums up to 15 Gal. - Walmart.com Fluval M50 Ultra-Slim Submersible Aquarium Heater - 50W Underwater Heater for Aquariums up to 15 Gal. - Walmart.com](https://i5.walmartimages.com/asr/b847a87b-c6bd-4b4c-aca0-6b922d46b7ad.6c2a44130ad39af662eaca899b34367f.jpeg)
Fluval M50 Ultra-Slim Submersible Aquarium Heater - 50W Underwater Heater for Aquariums up to 15 Gal. - Walmart.com
![Just got a fluval M50 heater, has these small scratches under the glass on the mirror finish, is this something to be worried about or normal for the M50? No cracks or Just got a fluval M50 heater, has these small scratches under the glass on the mirror finish, is this something to be worried about or normal for the M50? No cracks or](https://preview.redd.it/just-got-a-fluval-m50-heater-has-these-small-scratches-v0-xeiskg5x2oe81.jpg?width=640&crop=smart&auto=webp&s=80c8cb97a35eb801bc35f73294ccd21e0fefde80)