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  1. #1
    Senior Member Kirblit's Avatar

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    Copepod & Rotifer Cultures

    With lots of advice from @Joe, I started some copepod and rotifer cultures. The rotifers may get a bit crazy to keep up with harvesting, but we will see how it goes. The 2 tubs have rigger pods and the bucket is started with a 1 million rotifer starter culture from Reed Mariculture and their Compact Culture System. It is advised to harvest 20-30% of the rotifer culture daily, should keep my mandarin busy!



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    Senior Member Kirblit's Avatar

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    Everything seems to be doing well. I believe the pods have increased in numbers slightly but they all seem happy and doing well.




    The rotifers are going absolutely nuts though! Things multiply like crazy, I have harvested the last 2 nights and I would guess around 1 million or slightly less each time based on what the bag I got them in looked like. Here is the cup of them that I put in the tank the last two nights.



    I must say they eat a ton of food though. Here is a pic when I fed them this morning and what it looked like 13hrs later.



    I'm using super concentrated food for them but I'm going through alot more of it than I expected. I'm glad I'm not trying to culture phyto to keep up because I would need a pretty big operation.

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    Senior Member codeman01's Avatar

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    Following along on this.
    LEARNING SALTWATER ONE "CRASH" AT A TIME

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    Looking good!


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    Senior Member Kirblit's Avatar

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    Quote Originally Posted by Joe View Post
    Looking good!


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    I have gone through 2 bottles of the mix so far though, rotifers are greedy suckers!

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    Senior Member Kirblit's Avatar

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    My nightly harvest of rotifers, this represents about 10 cups of my culture volume that I ran through a sieve.

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    Registered User Oberst Hajj's Avatar

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    I've seen threads on these things and heard a little talk about them, but I don't know much at all on the subject. Is this something that you will have to do everyday/night indefinitely or is something that could be setup to become almost self sustaining?

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    Senior Member Kirblit's Avatar

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    Quote Originally Posted by Oberst Hajj View Post
    I've seen threads on these things and heard a little talk about them, but I don't know much at all on the subject. Is this something that you will have to do everyday/night indefinitely or is something that could be setup to become almost self sustaining?
    Yes, you are supposed to harvest 30% or so of your rotifers each day so densities don't get too high and crash. It's only about 10 minutes of maintenance a day and it's really easy. Scrub the bucket, clean the air lift floss, and harvest 25-30%/water change and that's it.

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    Registered User Oberst Hajj's Avatar

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    Do you have to reseed it, or do they reproduce on their own enough to replenish their levels?

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    Senior Member Kirblit's Avatar

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    They reproduce enough to keep going.

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    Senior Member Kirblit's Avatar

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    Well the pods seem to be doing quite well! They have multiplied exponentially now and I think I'm going to have to harvest them soon. They are clearing out the water (except for the crud on the bottom) pretty much daily now and I have to feed alot more. They all go nuts whenever I feed, Ill have to make a video.

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    Senior Member Kirblit's Avatar

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    I don't know what happened but my rotifer culture crashed. The only thing I changed was using water filtered through coffee filters from my old DT. I wonder if the super high nitrates caused some kind of issue with them. I was just using new saltwater to change the water before and it was going great. I think I will try another batch, but not for a while before I get something permanent setup and get the tank all transferred over.

    On a high note I did my first harvest of Tigger pods and it was pretty good to say the least. It has been a month since starting the culture and its pretty impressive to say the least. I left a good amount in there and sieved out the babies from adults, these were the adults I took out and put in the new tank. It all 300 gallons cloudy with pods, it was pretty cool to see.

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  13. #13
    Registered User Oberst Hajj's Avatar

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    That sucks that your rotifer culture crashed. Just wondering, why did you change your water change method for them? Also, are the Tigger pods mainly used to feed fish that eat pods, or do they have other benefits for your tank beyond that?

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    Senior Member Kirblit's Avatar

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    Quote Originally Posted by Oberst Hajj View Post
    That sucks that your rotifer culture crashed. Just wondering, why did you change your water change method for them? Also, are the Tigger pods mainly used to feed fish that eat pods, or do they have other benefits for your tank beyond that?
    Just out of convenience really, i was keeping them heated and it made it easy because it was preheated. It's supposed to be fine as long as you filter the water to remove other zooplankton from coming in with it.

    Tigger are good for normal fish mostly because the adults like to swim up in the water column. Other pods such as Tisbee are better for specific pod eaters like mandarin and pipe fish because they stay on rock and low in the tank. I have 4 diffent kinds of pods so that I can stock up the new tank and be able to move my mandarin over. Pods are also really good to have for eating algae and detritus as well, this is often overlooked as a good reason to have a good population.

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  15. #15
    Registered User Oberst Hajj's Avatar

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    So, without any specific pod eaters, how long would they live in a tank? I'm wondering if I picked some up how long they would last or how often I'd need to supplement their numbers.

  16. #16
    Senior Member Kirblit's Avatar

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    Quote Originally Posted by Oberst Hajj View Post
    So, without any specific pod eaters, how long would they live in a tank? I'm wondering if I picked some up how long they would last or how often I'd need to supplement their numbers.
    Depends on the pods. Tiggers won't proliferate as much as others do because they like to swim around and get filtered out. Other bottom dwellers will last forever as long as there is algae present and their numbers will wax and waine with their food source.

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  17. #17
    Senior Member Kirblit's Avatar

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    Tisbee are probobly some of the best that will keep reproducing in your tank. Munnid isopods are also really good for eating film algae and are common in most tanks (mine is crawling with them), larger mandarins will eat them as well. I kept my mandarin going strong 3 weeksin qt (tank transfer method & prazi) by harvesting several hundred a day from my glass.

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