Not every tank needs adjustable temperature control — sometimes a heater that's simply set correctly out of the box and can't be bumped off target is exactly what you want. The Sicce SCUBA Preset line is a plug-and-play submersible heater fixed at 77°F (25°C), across six wattages.
Why a Fixed-Temperature Heater
Most tropical community fish and many planted tanks thrive at a standard 77°F, and a preset heater removes the risk of an accidentally bumped dial or a misread temperature setting — there's no dial to set incorrectly in the first place.
Choosing a Wattage
- Preset 50 — 10–15 gallon — the smallest SCUBA Preset, sized for small tanks.
- Preset 100 — 20–35 gallon — steps up wattage for small to medium tanks.
- Preset 150 — 31–45 gallon — sized for medium tanks.
- Preset 200 — 40–60 gallon — for medium to large tanks.
- Preset 250 — 53–75 gallon — for larger tanks needing more heating capacity.
- Preset 300 — 65–90 gallon — the largest SCUBA Preset, for large tanks.
Setup Tips
- Match wattage to your actual tank size, not just the largest number available — oversizing wastes energy.
- Position near water flow for even heat distribution rather than in a dead-flow corner.
- Verify with a separate thermometer after installation to confirm actual tank temperature.
The Sicce SCUBA Preset line is available at Marine Concept Supply across all wattages — order online or pick up at our shop in Wheeling, IL. Shop Preset 50, 100, 150, 200, 250, or 300, and browse more aquarium heaters.
