1L Bottle Holder (Brine Shrimp Hatchery)
thingiverse
Holds a 1L bottle upside down, mainly for use in a Brine Shrimp Hatchery. Ideal for breeder aquariums and raising fry. To accomplish this task, you'll also need a "Co2 bottle cap" for 1L/2L bottles - these can be obtained on eBay for less than $1 each if you're willing to wait. Designed specifically around a 1L Coke bottle, but I suspect that most brands will fit just as well. The top hole is 90mm in diameter, allowing for a little bit of play. The pegs are 7.75mm wide and the holes for them measure 8mm in width. This design provided a perfect press fit for me, but I'm currently overextruding slightly, so I've included the Fusion 360 file if someone needs it to adjust those tolerances. For proper assembly, you will need: - Printed parts - (1) Middle.stl - this piece supports the neck of the bottle - (2) TopBottom.stl - this piece doubles as both the top and the bottom - (4) ArmLong.stl - these arms connect the top and middle pieces - (4) ArmShort.stl - these arms connect the middle and bottom pieces - (1) Co2 Bottle Cap for 1L/2L bottles - Airline tubing - (1) Short piece, approximately 6 inches or as desired - (1) Long piece, approximately 18 inches or as desired - (1) Microball valve TheKingofDIY has a great video on setting up and using your Brine Shrimp Hatchery.
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