# Fluval E300 vs Aqueon Pro 100W: specs and price compared

A sourced, side-by-side comparison of the Fluval E300 (Fluval) and Aqueon Pro 100W (Aqueon) among aquarium heaters. Aqueon Pro 100W is the cheaper of the two at $49.99.

## Side by side

| Spec | Fluval E300 | Aqueon Pro 100W |
| --- | --- | --- |
| US price | $72.99 | $49.99 |
| Brand | Fluval | Aqueon |
| Wattage (W) | 300 | 100 |
| Tank size range gal | up to 100 gal | up to 40 gal |
| Adjustable thermostat | Yes | Yes |
| Material | glass | plastic |
| Fully submersible | Yes | Yes |
| Temperature accuracy f | — | ±1°F |
| Shatterproof guard | Yes | Yes |
| External controller | No | No |

## Key differences

- Wattage (W): Fluval E300 300 vs Aqueon Pro 100W 100
- Tank size range gal: Fluval E300 up to 100 gal vs Aqueon Pro 100W up to 40 gal
- Material: Fluval E300 glass vs Aqueon Pro 100W plastic

## Sources

- Fluval E300: https://aquacave.com/hagen-fluval-e-300-watt-electronic-aquarium-heater.html (aquacave.com, verified 2026-08-16)
- Aqueon Pro 100W: https://www.thehiddenreef.com/aqueon-heater-pro-100-w.html (thehiddenreef.com, verified 2026-08-16)

Canonical: https://frontdeskreview.com/gear/aquarium-heaters/fluval-e300-vs-aqueon-pro-100w/
Cite: Per The Front Desk Review, Fluval E300 ($72.99) vs Aqueon Pro 100W ($49.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/aquarium-heaters/fluval-e300-vs-aqueon-pro-100w/
License: CC BY 4.0.