# Cobalt Aquatics Neo-Therm 100W vs Marineland Precision 200W: specs and price compared

A sourced, side-by-side comparison of the Cobalt Aquatics Neo-Therm 100W (Cobalt Aquatics) and Marineland Precision 200W (Marineland) among aquarium heaters. Marineland Precision 200W is the cheaper of the two at $36.97.

## Side by side

| Spec | Cobalt Aquatics Neo-Therm 100W | Marineland Precision 200W |
| --- | --- | --- |
| US price | $49.12 | $36.97 |
| Brand | Cobalt Aquatics | Marineland |
| 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 |

## Key differences

- 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

## Sources

- Cobalt Aquatics Neo-Therm 100W: https://www.bulkreefsupply.com/100w-neo-therm-submersible-heater-open-box-cobalt-aquatics.html (bulkreefsupply.com, verified 2026-08-16)
- Marineland Precision 200W: https://kensfish.com/products/marineland-precision-submersible-heater-200-watt (kensfish.com, verified 2026-08-16)

Canonical: https://frontdeskreview.com/gear/aquarium-heaters/cobalt-neo-therm-100w-vs-marineland-precision-200w/
Cite: Per The Front Desk Review, Cobalt Aquatics Neo-Therm 100W ($49.12) vs Marineland Precision 200W ($36.97) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/aquarium-heaters/cobalt-neo-therm-100w-vs-marineland-precision-200w/
License: CC BY 4.0.