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Mylivell Aquarium Heater 25W 50W 100W 200W 300W Submersible Auto Thermostat Fish Tank Heater, Small Aquarium Heater for 10-100 Gallon Fish Tank, Freshwater & Saltwater Compatible : Amazon.ca: Pet Supplies
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10 Best Cold Water Fish That Don't Need an Aquarium Heater – Aquarium Co-Op
10 Best Cold Water Fish That Don't Need an Aquarium Heater – Aquarium Co-Op
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27 Best Cold Water Fish For Your Aquarium (No Heater)
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