Sicce Scuba Preset 100W Aquarium Heater

The Sicce Scuba Preset 100W Aquarium Heater is a durable, fully submersible heater built to keep appropriately sized aquariums at a stable, comfortable temperature. Pre-set to maintain a consistent 77°F (25°C), it delivers preset heating when properly sized and monitored for tropical fish, shrimp, and live plants.

Built with shatter-resistant glass, thermal overheat protection, and a precision thermostat, the Scuba Preset works dependably in freshwater, saltwater, and planted aquariums and installs with the included suction-cup mount.

Key Features

• Pre-set to 77°F (25°C) - ideal range for most tropical tanks, no adjustment needed
• 100W output - sized for aquariums 20–35 gallons
• Fully submersible - mount horizontally or vertically
• Shatter-resistant construction - durable glass housing for safety and longevity
• Automatic thermostat - maintains steady water temperature
• Freshwater & saltwater safe - versatile for community, planted, and marine setups

Specifications

• Brand: Sicce
• Model: Scuba Preset 100W
• Power: 100 Watts
• Temperature Setting: Pre-set 77°F (25°C)
• Aquarium Size: 20–35 US gallons
• Material: shatter-resistant glass
• Use: Freshwater or saltwater aquariums
• Installation: Fully submersible (horizontal or vertical)

Usage Tips

• Position the heater near steady water flow so heat spreads evenly.
• Let the heater sit in the water 10-15 minutes before plugging in to avoid thermal shock.
• Pair with a separate aquarium thermometer to monitor temperature accuracy.
• Unplug and allow the heater to cool before removing it from the tank.

Heater Sizing Guide

As a rule of thumb, choose roughly 3-5 watts per gallon depending on how much warmer your tank needs to be than the room:

• 50W - up to ~15 gallons
• 100W - 20–35 gallons
• 150W - 31–45 gallons
• 200W - 40–60 gallons
• 250W - 53–75 gallons
• 300W - 65–90 gallons

Temperature Accuracy and Safety

This model is factory preset to approximately 77°F (25°C), with a manufacturer-stated tolerance of ±2°F (±1°C). It is not adjustable. Use a separate aquarium thermometer to verify the actual water temperature, and make sure the preset temperature suits the animals in the tank.

Install fully submerged with good water circulation, follow the supplied instructions, and arrange the power cord with a drip loop. Unplug before water changes or removal and let the heater cool while still submerged. Never operate an aquarium heater outside water.

FAQ

Q: Can I adjust the temperature?
A: No - this model is pre-set to hold 77°F (25°C) automatically.

Q: Is it safe for saltwater tanks?
A: Yes, the Scuba Preset works in both freshwater and marine aquariums.

Q: Does it need to be fully submerged?
A: Yes, it is designed for full submersion.

Q: What size tank is best for the 100W model?
A: It works best for aquariums approximately 20–35 gallons.