Heaters · Eheim
Eheim Jager TruTemp 300W Aquarium Heater fit check
Eheim Jager TruTemp 300W Aquarium Heater Heaters specs, fits roughly 55-100 gallon systems, compatibility math, risks, alternatives, and vendor-neutral buying links.
Category
Heaters
Build tier
Budget
Estimated price
$53
Tank fit range
fits roughly 55-100 gallon systems
Format
Glass Heater
Heater wattage
300 W
Compatibility math
Safe wattage band
2.5 <= total watts / display gallons <= 5.0
Example: 300W is usually a planning fit for roughly 60-120 gallons before room-temperature and redundancy choices.
ReefCrafter checks both the low-wattage failure and the oversized stuck-on failure.
Risk notes
- A single oversized heater can cook livestock faster than a beginner notices the problem.
- High wattage should be split or controller-protected on most reef systems.
Full spec snapshot
- Category
- Heaters
- Build tier
- Budget
- Estimated price
- $53
- Tank fit range
- fits roughly 55-100 gallon systems
- Format
- Glass Heater
- Heater wattage
- 300 W
