A warm fish is a happy fish
Aquarium Heating Guide
Heating your aquarium is vital for a healthy aquarium. Unlike mammals fish do not produce their own body heat and rely on their surroundings for temperature control. Wide swings in temperature will have adverse affects on your tanks inhabitants quality of life. Fluval has an amazing line of heaters to ensure your tank will always stay at a constant temperature for your fish or invertebrates.
Fluval M Series Submersible Aquarium Heaters
Most aquarium owners will opt for a submersible heater, as they are cost effective and durable. Fluval has a very high quality line of submersible heaters with their M Series.
Benefits:
- Fluval uses superior components in its construction of submersible heaters.
- Very slim profile as to not distract from viewing in the tank.
- Shock resistance glass, for exceptional durability
- Super easy one touch adjustment temperature dial.
M Series Submersible Heating guidelines
Fluval M50 | 50 watts | 0-15 gallons |
Fluval M100 | 100 watts | 15-30 gallons |
Fluval M150 | 150 watts | 30-45 gallons |
Fluval M200 | 200 watts | 45-65 gallons |
Fluval M300 | 300 watts | 65-85 gallons |

Fluval E Series Submersible Heaters
As with most parts of life technology has made advances, aquarium keeping is no different. Fluval E Series allows users incredible control and precision with its latest design. The basic premise of delivering heat is the same but the level of control is a whole new level of perfection.
Benefits:
- LCD temperature display to indicate water temperature in real time.
- Heater LCD screen will change color is there is a change of 2 degrees alerting user to potential risk.
- Precision like never before allowing incremental changes of .5 degrees.
- Protective housing around heating elements to protect your fish and invertebrates from inadvertent contact.
E Series Submersible Heating guidelines
Fluval E50 | 50 watts | 0-15 gallons |
Fluval E100 | 100 watts | 15-30 gallons |
Fluval E200 | 200 watts | 30-65 gallons |
Fluval E300 | 300 watts | 65-100 gallons |
*on tanks of larger sizes multiple heaters can be used together.

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