
It might be a bit whimsical, but it's no problem if you do it once or twice. Once you do this it will be an amazing filter! My advice is to check out the Pondgurus review on YouTube for this particular filter. Too bad they only offered it on Amazon for a month. Filter aka Sunsun HBL 803. Edit: It's back in stock! And that's great because for the new 20 gallons I need another one. The original I bought in January 2021 still works.

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