Tetra HT10
Manufacturer-rated for 2–10 US gal and preset to 78°F.
Tetra HT10 vs Tetra HT30
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)
Only the Tetra HT30 fits by its maker’s rating.
- Tetra HT10: Rated 2–10 gal, not 20 gal.
- Tetra HT30: Rated for a 20 gal tank.
What changes for you
- Tank size: the Tetra HT10 is rated 2–10 US gal, the Tetra HT30 10–30 US gal.
- Power: 50 W against 100 W. More watts heats more water or a bigger rise above room temperature; check the maker's chart for your room.
Next: Tetra HT10: details and fit · Tetra HT30: details and fit · All heaters for your tank
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Tetra HT30
Manufacturer-rated for 10–30 US gal and preset to 78°F.
Side by side
| Published figure | Tetra HT10 | Tetra HT30 |
|---|---|---|
| Rated tank size | 2–10 US gal | 10–30 US gal |
| Power | 50 W | 100 W |
| In the box | heater, mount | heater, mount |
Figures as published by each maker; see each model’s page for its sources. Open this pair in the full comparison tool →