Cobalt Aquatics
Cobalt Aquatics Neo-Therm 100W
$49.12Cheaper
Best Aquarium Heaters · head-to-head
A sourced, side-by-side comparison. Cobalt Aquatics Neo-Therm 100W is cheaper at $49.12. Every spec and price links to its source.
Cobalt Aquatics
$49.12Cheaper
hygger
$66.99
On the specs we track, they're closely matched. The Cobalt Aquatics Neo-Therm 100W is the cheaper at $49.12.
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✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | $49.12 | $66.99 |
| Brand | Cobalt Aquatics | hygger |
| Released | — | — |
| Wattage (W) | 100 | 500 |
| Tank size range gal | up to 29 gal | 60-120 gal |
| Adjustable thermostat | Yes | Yes |
| Material | plastic | titanium |
| Fully submersible | Yes | Yes |
| Temperature accuracy f | ±0.5°F | — |
| Shatterproof guard | Yes | — |
| External controller | No | Yes |
Sources — Cobalt Aquatics Neo-Therm 100W: bulkreefsupply.com (verified 2026-08-16). hygger 500W Titanium: buceplant.com (verified 2026-08-16).
Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.