# Aqueon Pro 100W vs Marineland Precision 200W: specs and price compared

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

## Side by side

| Spec | Aqueon Pro 100W | Marineland Precision 200W |
| --- | --- | --- |
| US price | $49.99 | $36.97 |
| Brand | Aqueon | Marineland |
| Wattage (W) | 100 | 200 |
| Tank size range gal | up to 40 gal | up to 55 gal |
| Adjustable thermostat | Yes | Yes |
| Material | plastic | — |
| Fully submersible | Yes | Yes |
| Temperature accuracy f | ±1°F | — |
| Shatterproof guard | Yes | — |
| External controller | No | No |

## Key differences

- Wattage (W): Aqueon Pro 100W 100 vs Marineland Precision 200W 200
- Tank size range gal: Aqueon Pro 100W up to 40 gal vs Marineland Precision 200W up to 55 gal

## Sources

- Aqueon Pro 100W: https://www.thehiddenreef.com/aqueon-heater-pro-100-w.html (thehiddenreef.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/aqueon-pro-100w-vs-marineland-precision-200w/
Cite: Per The Front Desk Review, Aqueon Pro 100W ($49.99) vs Marineland Precision 200W ($36.97) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/aquarium-heaters/aqueon-pro-100w-vs-marineland-precision-200w/
License: CC BY 4.0.