Hydor Betta Bowl Slim Fish Tank Heater, 15-Watt, Measures 3 3/16 X 6 1/8 Inches Oval, Black; For Tanks 5-10 Gallons

Hydor 15-Watt Slim Heater Helps Guarantee Your Fish A Healthy Life By Promoting The Ideal Water Temperature. Specially Designed With The Innovative Positive Thermal Coefficient Element To Heat The Temperature Of Your Aquarium Or Terrarium An Average Of 5 To 10-Degree Warmer Than Room Temperature. Designed For Aquariums Between 5 And 10 Gallons. Whether Its A Glass, Plastic Or Acrylic Tank With Fresh Or Salt Water, This Product Is Great For Creating A More Livable Environment For Your Betas, Glowfish And Many Other Kinds Of Fish And Reptiles.