HOW TO: $2 DIY Aquarium oxygen TUTORIAL

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Fish gasping at the surface during a power outage? This is how you can make your own PURE oxygen and save their lives! uarujoey thekingofdiy

Make your own aquarium heater:

Build a protein skimmer:

Build a DIY aquarium top off:

All in one aquarium filter:

Water alarm:

DIY aquarium co2: "

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