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heater problem

  1. need advice please. 29 gallon tank / found male guppy dead

    Beginner Freshwater Aquarium
    I have 4 female guppys and 2 are pregnant an 1 male they all seemed fine I have been leaving the light on cause i have yet to get a heater but i am going today i came home from work decided to turn the light off an usually the temperature is always at 75 degrees no less but foun my male guppy...
  2. 300 w deep blue heater temp settings?

    Beginner Freshwater Aquarium
    I just bought a 300 w deep blue heater for my 75 gal freshwater tank. it will turn on but it did not come with instructions on how to set the temperature.
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