Cobalt Aquatics
Cobalt Aquatics Neo-Therm 100W
$49.12
Best Aquarium Heaters · head-to-head
Cobalt Aquatics Neo-Therm 100W vs Finnex HMA-200S
A sourced, side-by-side comparison. Finnex HMA-200S is cheaper at $27.19. Every spec and price links to its source.
Finnex
Finnex HMA-200S
$27.19Cheaper
Which is better: the Cobalt Aquatics Neo-Therm 100W or Finnex HMA-200S?
On the specs we track, they're closely matched. The Finnex HMA-200S is the cheaper at $27.19.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Cobalt Aquatics Neo-Therm 100W | Finnex HMA-200S |
|---|---|---|
| US price | $49.12 | $27.19 |
| Brand | Cobalt Aquatics | Finnex |
| Released | — | — |
| Wattage (W) | 100 | 200 |
| Tank size range gal | up to 29 gal | 60-80 gal |
| Adjustable thermostat | Yes | Yes |
| Material | plastic | titanium |
| Fully submersible | Yes | Yes |
| Temperature accuracy f | ±0.5°F | ±2°F |
| Shatterproof guard | Yes | Yes |
| External controller | No | Yes |
Sources — Cobalt Aquatics Neo-Therm 100W: bulkreefsupply.com (verified 2026-08-16). Finnex HMA-200S: bulkreefsupply.com (verified 2026-08-16).
What's the difference between the Cobalt Aquatics Neo-Therm 100W and Finnex HMA-200S?
Where the two actually differ on the specs we track (5 of 8). Matching specs are omitted.
- Wattage (W): Cobalt Aquatics Neo-Therm 100W 100 vs Finnex HMA-200S 200
- Tank size range gal: Cobalt Aquatics Neo-Therm 100W up to 29 gal vs Finnex HMA-200S 60-80 gal
- Material: Cobalt Aquatics Neo-Therm 100W plastic vs Finnex HMA-200S titanium
- Temperature accuracy f: Cobalt Aquatics Neo-Therm 100W ±0.5°F vs Finnex HMA-200S ±2°F
- External controller: Cobalt Aquatics Neo-Therm 100W false vs Finnex HMA-200S true