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aquarium heater
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  1. Betta Fish Bowls, Habitats, and Accessories
    I've been looking for a heater for a while now, but I'm not really sure which kind is better. One that goes under the gravel? Or one that sticks to the side of the tank? And what brands of heater do you guys use? My tank is 2.5 gallons right now if you could also give recommendations on that...
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