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chelsea asked in PetsFish · 3 years ago

How to get a HOB filter to work at a low water line? If no way, cheap external filter that will for a 30 gal filled at 22?

2 Answers

Relevance
  • 3 years ago
    Favorite Answer

    You will need a spong filter type.

  • Anonymous
    3 years ago

    HOB filters do not function with a lowered water level and especially bad, won't restart reliably after a power outage.

    Cheap filters suck.

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