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I needed a gentle filter for my quarantine tank and had lots of stuff laying around, so it was time to DIY! Materials : - Bottle: Can be any plastic...
I picked an old Nalgene bottle for this project because: 1. It's study 2. It has a relatively large capacity (1 liter) 3. It has a wide mouth for eas...
Innuendo fully intended. This step will be easy for those who have a carving drill bit. I used a combination of a 5/8th bit, a sanding bit, a SA knif...
Next, drill some holes near the bottom of the bottle. This is where the water will enter the filter, so you can decide on the quanitity, size, and pos...
The original plan was to suspend the air stone inside the tube. Problem was: what would keep it in place? Enter the aforementioned extra hole in the ...
Finally, insert the media of your choice, screw on the lid, and you're done! Remember, the water will flow from the bottom to the top, so put the coar...
Connect the airline tubing to an air pump with a check valve and you're in business! Here's the filter seeding healthy bacteria in my main tank. Hope...
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