How to Make a Gentle Aquarium Siphon or Vacuum

Step-by-Step Guide

1. 1

   Step 1: Rinse and dry the air tubes and bottle in clean water

   The holes should be barely big enough to squeeze the air tube through. ,,, If you're using blue tack (or any other sealant that is not aquarium safe) and planning to use the siphon to add clean water to the tank, apply it only to the outside of the lid or else the water may become contaminated and harm your fish.
   
   Press it down firmly to make it airtight. , Read How to Use a Gentle Aquarium Siphon or Vacuum. ,
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   Step 2: taking particular care to clean the bottle if it has been washed in detergent or soap or had anything other than water in it (like fruit juice).

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   Step 3: Remove the lid and carefully bore two holes in it using the tip of the pocketknife blade (or the boring tool if you have one).

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   Step 4: Insert the short piece of air tube into one of the holes so that there is less than a finger width sticking through the lower side of the lid.

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   Step 5: Insert the long piece of air tube so that the amount on the lower side of the lid is about the height of the bottle.

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   Step 6: Apply sealant where the air tube meets the lid on the outside and/or inside of the lid and allow it to dry.

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   Step 7: Put the lid back on the bottle

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   Step 8: your gentle siphon is now ready to use!

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   Step 9: Finished.

Detailed Guide

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