Best Aquarium Heaters · head-to-head

Cobalt Aquatics Neo-Therm 100W vs hygger 500W Titanium

A sourced, side-by-side comparison. Cobalt Aquatics Neo-Therm 100W is cheaper at $49.12. Every spec and price links to its source.

Which is better: the Cobalt Aquatics Neo-Therm 100W or hygger 500W Titanium?

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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Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec Cobalt Aquatics Neo-Therm 100W hygger 500W Titanium
US price $49.12 $66.99
BrandCobalt Aquaticshygger
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).

What's the difference between the Cobalt Aquatics Neo-Therm 100W and hygger 500W Titanium?

Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.

  • Wattage (W): Cobalt Aquatics Neo-Therm 100W 100 vs hygger 500W Titanium 500
  • Tank size range gal: Cobalt Aquatics Neo-Therm 100W up to 29 gal vs hygger 500W Titanium 60-120 gal
  • Material: Cobalt Aquatics Neo-Therm 100W plastic vs hygger 500W Titanium titanium
  • External controller: Cobalt Aquatics Neo-Therm 100W false vs hygger 500W Titanium true

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