Fluval E100
Manufacturer-rated for aquariums up to 30 US gal; adjustable 68–93°F.
Fluval E100 vs Fluval E200
What changes for you, from the makers' published figures. Neither is "better": the right one is the one that fits your tank and how you look after it.
For a 20 gallon long (example)
Both fit by the makers’ ratings.
- Fluval E100: Rated for a 20 gal tank.
- Fluval E200: Rated for a 20 gal tank.
What changes for you
- Tank size: the Fluval E100 is rated up to 30 US gal, the Fluval E200 up to 65 US gal.
- Power: 100 W against 200 W. More watts heats more water or a bigger rise above room temperature; check the maker's chart for your room.
- Size: Fluval E100 11.75 in long, Fluval E200 14 in long. Check it fits your tank’s water depth at the angle you mount it.
Next: Fluval E100: details and fit · Fluval E200: details and fit · All heaters for your tank
Fluval E100
Fluval E200
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Fluval E200
Manufacturer-rated for aquariums up to 65 US gal; adjustable 68–93°F.
Side by side
| Published figure | Fluval E100 | Fluval E200 |
|---|---|---|
| Rated tank size | Up to 30 US gal | Up to 65 US gal |
| Power | 100 W | 200 W |
| Dimensions | 2 × 1.25 × 11.75 in (L × W × H) | 2 × 1.25 × 14 in (L × W × H) |
| In the box | heater, fish guard, mounting bracket | heater, fish guard, mounting bracket |
Figures as published by each maker; see each model’s page for its sources. Open this pair in the full comparison tool →