my setup for breeding mysid shrimp

DWhatley

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Do you have any kind of feel for how many size separations you will need to keep predation minimized? It occurs to me that only two size divisions are not enough and that the babies that doe grow will start consuming the next generation. I am surprised the peps have not consumed all your adults.
 

gpx1200

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i didn't mean that pepermints will follow mysisds around they follow other pregnant pepermints around, i was just compairing them to mysids and considering the posability that the mysids could do the same and be feeding on babbie mysids as they are born. i don't have pepermints in with my mysids but i'm thinking of adding a few turbo snails to help keep the screens clean of algie.
and yes i have considerd adding a third compartment with 800 mesh screen on the lift tube but for now i'm going to try seperating the pregnant females into the 20 long and moving some of the males into other tanks, posibly some females as well they are pretymuch bottom dwellers so i don't think theyll wind up in the overflow and spiders tank and my mangrove tank have tons of coepaods and no preditors for them to wory about so mabie theyll start colonies their as well
 

DWhatley

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Ah, that makes more sense :biggrin2:

I have found that Astrea snails are the best algae cleaners I have ever had and recommend trying them along with the turbos to see which species works best for attacking the mesh blockage.

I am really enjoying your experiment. Thinking about how to somewhat automate the system, I wonder if a middle chamber that has lift tubes emptying into the larger mysis side (ie if the screens get smaller from left to right, the tubes would dump right to left) would result in everything getting eaten or if it would allow healthy numbers of three sizes to continually be separated.
 

gpx1200

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i'm not seeing alot of progress in raising my numbers so far i'm geting babbies in the nursery side wich are growing but i'm also loosing adults any time the food gets low it seems my numbers go down, i'm going to continue trying to seperate and raise the babbies and i'm seting up another 20g tank to house mysids but i have also orderd some cuttlefish eggs so when the eggs hatch ill start picking out some of the males to feed and try and keep the females(easly identified by the white brood pouch) in the breeder tank. i figure if theyr going to eat each other any way i might as well be feeding cuttle fish and ill try and grow out whatever babbies i can save.
i have noticed that in a tank with alot of open area the mysids seem to groop togeather near one or two corners but after i added some rocks and cheato to break up the space the mysids spread out more wich i think might help cut down on canibalisum
 

DWhatley

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Even light distribution may help scatter them as well but I suspect the cheato may provide the most protection and you might consider experimenting with distributing it across the entire top surface of the adult tank (I hate the stuff when it starts to break apart :hmm:)
 

gpx1200

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do over

well my first batch of mysids is prety much wiped out and been replaced by thousands of jellyfish hydroids i'm not positive but i think they wer in the decaped brine i was freeding the mysids, i still have some of these eggs left and i plan to do a small expairiment to see for shure but i don't have time for that right now.
i have a new culture of 400 mysids from sachs wich is a better product by leaps and bounds than the previous one i bought, the water was clean and their was nothing but healthy live mysids in the bag except for the ones that wer being eaten and they may have been live as well
i am also starting with a new bottle of ez hatch decaped brine from brineshrimp direct wich also looks like a much better product than the one from ANF. it's alot more consentrated with alot more eggs for the money and looks alot cleaner before and after hatching(hopefuly no hydroids) the color is more orange before and bright florecent orange after hatching with no black and brown flecks like the old stuf did they also seem to hatch sooner.
for now the mysids are back in the 20 long while i drain the 40breeder and clean it well(like muriotic acid well!!) thel ill give the babbie seperator another try with some 800 micron mesh i got to replace the 1000m stuff on the lift tubes.
i still have hopes for this system to work, i can allready see a differance in how much longer the food lasts in the tank without the hydroids grabing them up, i'm prety shure my last culture was out compeeted for food and i wound up raising hydroids instead.
 

DWhatley

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I have not used muriatic acid but was going to mention Clorox (chlorine bleach) for the hydroids. They are nasty and you need to be sure you get all of them.
 

spinycheek

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Very interesting set-up, much easier than the typical hand held seive every other day :)

That's unfortunate about the hydroids, they are a pain. Too bad there isn't a commercial cnidocide that wouldn't kill the shrimp.
 

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im getting ready to take another shot at breeding mysids for upcoming baby cuttles. this time ive drilled the tank for a drain and return and added a sump/fuge and skimmer to help control algie and water quality, ive also made new baby sucker tubes with 800 micron screen instead of 1000 to get better separation of the smallest babys
 

DWhatley

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Thanks for remembering to journal this on TONMO as you experiment. Cuttle keepers so need a successful way to do breed these guys!
 
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