Hydor 7.5 Watt Mini Heater- Small (2 to 5 gallons)
• Extra small: easy to hide in mini tanks and bowls
• Super safe even under gravel; no damage if left running dry
• Completely submersible; ideal for use in both glass and acrylic tanks
• COMPLETELY SAFE FOR BETTA BOWLS!
• Each model increases the ambient temperature of a tank/bowl within its size range approximately 5- 10F (2.5- 5C)
• No setting necessary as this is an ambient heater that CANNOT raise temperature any more 10 degrees.
As an example if the 7.5 watt model used with a 2 gallon bowl that is normally 70 degrees without a heater, the 7.5 watt model will raise the temperature to approximately 80F. This same model would raise a 5 gallon tank/bowl with the same ambient conditions to approximately 75F.