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[Jackos80]

I posted this up on another site thought it should go up here as I checked your DIY and you didn't have one for a Brine Shrimp.

Well I was sitting around waiting for people to pickup fish tanks on the weekend and though with the look of my old brine shrimp bottle I could do better. Separating the eggs shells to the shrimp was a pain as you had to suck them through a piece of air line.

Pic of Model Alpha

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I had to grab a lid from a little container and put a rock on top of it to hold it down. This wasn't the greatest as you can all tell by the pic.

So I started using my head and thought about it how I could improve it.

Things you need to make.
2x 2 litre bottles I choose my caffine addiction bottles
1x metre long length of air hose line
1x one way valve (stop vavle I call them)
1x Screw top valve
Bit of silicone
Drill or knife ( Drill is alot easier)
Bit of substrate


I thought air line at the bottom to create the swirl but make it so you can get the shrimp to come out of there as well. This tap wasn't really needed you could use hose straight up in there but I put a bit of silicone around the hole on the cap and pushed the valve in.

Pic of Model Beta 1

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I drilled the bottom of the bottle to create a way for the air to get out and put a bit hole in the middle so you can fill it back up with salt water and put the brine shrimp eggs in. I cut one of the bottles top off just as it gets to the label. This is going to be what holds it. I also drilled a hole near the bottom of the holder to put the air hose line to fit to the screw top valve.

Pic of bottom of Model Beta 1

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On the end of the air hose line I put in a stop valve to make sure the contents of the bottle doesn't go back into my air pump.

Pic of Stop Valve

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I rigged it up again and tried with a new batch. Came into fault as I found out the valve was the wrong way, there was hardly any air getting pushed through and it was leaking a bit into the bottom of the holder. A bit more common sense as I looked where I plugged it into on my air pump and then looked at the bottle. So I changed it around.

Pic of Screw Top Valve the right way

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This fixed the problem and I put it all back together and it works great. I put the substrate at the bottom of the bottle to keep it sturdy.

Pic of Prototype Beta 2

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I have it rigged up in the garage bubbling away now. When the brine shrimp is ready to be harvested all I have to do is take the air hose line off the air pump, remove the stop valve on the line and then aim the hose into the tank. This way the egg casings stay at the top of the bottle with the unopened eggs as well.

Pic of finished and running Prototype Beta 2 Brine Shrimp

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All up took me about 15mins to rig up. I just drain the salt water into the top of the upside down bottle, then add the brine shrimp eggs. Turn on the air and the light I leave beside it and bingo 3 days later Brine Shrimp.


Hope you enjoy

Jack