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Here's the links I mentioned in the video:

Pondforse aquarium pump on Amazon: https://amzn.to/3yqw6eS
Air tubing: https://amzn.to/3kZrCsK

And as I said in the video, the above are affiliate links, so if you buy something through them I may get a commission from Amazon at no extra cost to you. That's just an easy way to support the channel if you'd like to, so thanks in advance to everybody who does that. Cheers.