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Thread: Baby Brine Shrimp

  1. #1

    Baby Brine Shrimp

    So just a quick question.I set up a brine shrimp hatchery and after 30 hours or so, I shut off the air pump and let it settle.I took a turkey baster and sucked up the shrimp from the very bottom.I put them into a glass jar and they are all on the bottom.Should they be swimming in the jar or just laying on the bottom like in the hatchery?When I put them into the fish tank to feed my fry, they just sink to the bottom.

  2. #2
    Quote Originally Posted by rb1219 View Post
    So just a quick question.I set up a brine shrimp hatchery and after 30 hours or so, I shut off the air pump and let it settle.I took a turkey baster and sucked up the shrimp from the very bottom.I put them into a glass jar and they are all on the bottom.Should they be swimming in the jar or just laying on the bottom like in the hatchery?When I put them into the fish tank to feed my fry, they just sink to the bottom.
    Hold your baster full of eggs up to a light. do you see them swimming now??..did you add a light source next to the vessel to attract them to it??...you should be able to see them mass to it, extract them from this, not the very bottom, they stay up a bit towards the light source.....and yes, they will settle after a bit. they don't stay in the water column continuously swimming....

    Did you add non-iodized salt to the egg mixture??....was the bbs rearing jar around 80 deg's??..Where did you get your brine shrimp eggs?...did your eggs have instructions with them??
    Jon
    He attacked everything in life with a mix of extraordinary genius and naive incompetence, and it was often difficult to tell which was which.
    - Douglas Adams

    http://www.mugwump-fish-world.com/index.php

  3. #3
    I did not use a light source,so I am assuming that was the problem.I am going to set up a continuous feed hatchery in the tank,how old do the fry have to be to use that?

  4. #4
    Quote Originally Posted by rb1219 View Post
    I did not use a light source,so I am assuming that was the problem.I am going to set up a continuous feed hatchery in the tank,how old do the fry have to be to use that?
    I'd wait til free swimming for a good week to make sure that the all are eating well first. Remember that the aggressive fry will get to the bbs from the feeder first, and pig out....I'd do supplement feedings too, so other fry can get fed well too.
    Jon
    He attacked everything in life with a mix of extraordinary genius and naive incompetence, and it was often difficult to tell which was which.
    - Douglas Adams

    http://www.mugwump-fish-world.com/index.php

  5. #5

  6. #6
    Definitely wait. I've had the aggressive fry swim into the continuous hatchery and pig out in the saltwater section....then die from gorging and extended exposure to the high salt content.

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  8. #8
    Gorging is definitely not a good thing! They'll bust a gut since free swimmers have no "I'm full, thank you" switch - they're piggie-pigs. So far as when to start to feed them? 2 days after you see them first free swim - no more, no less. Sometimes the egg sac isn't completely absorbed and you definitely want that gone by the time you feed or they may ignore the brine shrimp which will then proceed to either rot on the bottom or clog up your filter in no time. As for why they're at the bottom? You either picked up eggs that haven't yet hatched or they're dead. Because of high activity and boatload of shrimp in a small container, it's possible that they ran out of oxygen and asphyxiated. But that only hatches if you hatched much more than say less than a tsp and your container into which you put them is something like a shot glass. Long story short - no, they should not be on the bottom and not moving. Oh and yes, as Dena suggests, need to rinse them.
    Last edited by terrapins; 04-03-2015 at 11:01 PM.

  9. #9
    I went out and purchased a lamp light.I made two more batches with different brine shrimp eggs and keep the light on it.Now when I shine a light into the container,I can see them moving around.I only have 20-22 fry swimming around and is very hard to gauge, but they seem to be doing good.I clean out the bottom with a turkey baster every day(sometimes twice).All good so far.What else can I use to clean off the bbs besides a shrimp net?

  10. #10
    I really like these from Brine shrimp direct. http://www.brineshrimpdirect.com/c9/...hing-p181.html When I bought mine, they were offering a set of 4 in different size mesh. I used the smallest for brine and the largest for sifting crushed flake.

    Ah, I found the set,,, http://www.brineshrimpdirect.com/c9/...-Set-p205.html

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