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Amazon.com: AQQA Submersible Aquarium Heater 300W Fish Tank Heater 40-60 Gallon Aquarium Betta Heater Thermostat Heaters with Suction Cups Tank Heater for Hydroponic Freshwater & Saltwater(300W) : Pet Supplies
![Help! I recently purchased a betta and have him in this 3.5 gallon tank. The tank has a heater, filtration, and hiding spots. For some reason, he just sits near the heater, Help! I recently purchased a betta and have him in this 3.5 gallon tank. The tank has a heater, filtration, and hiding spots. For some reason, he just sits near the heater,](https://external-preview.redd.it/dd39_-fDBfl2n2VgU4H1fJSLUzYMkfgsKPnq18MZ0eA.jpg?auto=webp&s=b8bd909fb52dda595b3100fbdebcd90ec40d0519)
Help! I recently purchased a betta and have him in this 3.5 gallon tank. The tank has a heater, filtration, and hiding spots. For some reason, he just sits near the heater,
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Amazon.com: Hydor Betta Bowl Slim Fish Tank Heater, 7.5-watt, measures 3.5 inches round, black; For tanks 2-5 gallons : Pet Supplies
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Amazon.com : HITOP 800W Titanium Aquarium Heater - with External Controller Submersible Heater for Large Fish Tank up to 250 Gallon, Shatterproof Heater for Fish or Turtle Saltwater and Fresh Water : Pet Supplies
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Amazon.com : PONDON 3 Gallon Fish Tank, Glass Aquarium Tank with with Thermometer and Filter, 7 LED Light Colors, Small Fish Tank for Betta Fish Starter Kit (Black) : Pet Supplies
![Amazon.com: Hydor Betta Bowl Slim Fish Tank Heater, 7.5-watt, measures 3.5 inches round, black; For tanks 2-5 gallons : Pet Supplies Amazon.com: Hydor Betta Bowl Slim Fish Tank Heater, 7.5-watt, measures 3.5 inches round, black; For tanks 2-5 gallons : Pet Supplies](https://m.media-amazon.com/images/I/31CGaS0lt3L._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Hydor Betta Bowl Slim Fish Tank Heater, 7.5-watt, measures 3.5 inches round, black; For tanks 2-5 gallons : Pet Supplies
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