![Fluval M200 Submersible Heater, 200-Watt Heater for Aquariums up to 65 Gal, A784 : Amazon.ca: Pet Supplies Fluval M200 Submersible Heater, 200-Watt Heater for Aquariums up to 65 Gal, A784 : Amazon.ca: Pet Supplies](https://m.media-amazon.com/images/I/81CHh1+rx2L._AC_SL1500_.jpg)
Fluval M200 Submersible Heater, 200-Watt Heater for Aquariums up to 65 Gal, A784 : Amazon.ca: Pet Supplies
![Question on the fluval m series heaters. Is the line shown on the heater the maximum water line or can the entire heater be submerged? : r/Aquariums Question on the fluval m series heaters. Is the line shown on the heater the maximum water line or can the entire heater be submerged? : r/Aquariums](https://preview.redd.it/ogg3w4ypqzr81.jpg?width=640&crop=smart&auto=webp&s=d7dfe4014627a9618acc16756d7cc1df1b2e1282)
Question on the fluval m series heaters. Is the line shown on the heater the maximum water line or can the entire heater be submerged? : r/Aquariums
![Fluval M200 Submersible Heater, 200-Watt Heater for Aquariums up to 65 Gal, A784 : Amazon.ca: Pet Supplies Fluval M200 Submersible Heater, 200-Watt Heater for Aquariums up to 65 Gal, A784 : Amazon.ca: Pet Supplies](https://m.media-amazon.com/images/I/81lBwwrivML._AC_SL1500_.jpg)