Cobalt Aquatics
Cobalt Aquatics Neo-Therm 100W
$49.12
2 sellers$49.12–$102.97read
Best Aquarium Heaters · head-to-head
Cobalt Aquatics Neo-Therm 100W vs Marineland Precision 200W
A sourced, side-by-side comparison. Marineland Precision 200W is cheaper at $36.97. Every spec and price links to its source.
Marineland
Marineland Precision 200W
$36.97Cheaper
Which is better: the Cobalt Aquatics Neo-Therm 100W or Marineland Precision 200W?
On the specs we track, they're closely matched. The Marineland Precision 200W is the cheaper at $36.97.
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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 |  Marineland Precision 200W |
|---|---|---|
| US price | $49.12 | $36.97 |
| Brand | Cobalt Aquatics | Marineland |
| Released | — | — |
| Wattage (W) | 100 | 200 |
| Tank size range (gal) | up to 29 gal | up to 55 gal |
| Adjustable thermostat | Yes | Yes |
| Material | plastic | — |
| Fully submersible | Yes | Yes |
| Temperature accuracy (°F) | ±0.5°F | — |
| Shatterproof guard | Yes | — |
| External controller | No | No |
Sources — Cobalt Aquatics Neo-Therm 100W: bulkreefsupply.com (verified 2026-10-07). Marineland Precision 200W: kensfish.com (verified 2026-08-16).
What's the difference between the Cobalt Aquatics Neo-Therm 100W and Marineland Precision 200W?
Where the two actually differ on the specs we track (2 of 8). Matching specs are omitted.
- Wattage (W): Cobalt Aquatics Neo-Therm 100W 100 vs Marineland Precision 200W 200
- Tank size range (gal): Cobalt Aquatics Neo-Therm 100W up to 29 gal vs Marineland Precision 200W up to 55 gal