Lysmata Debelius Breeding Log

Re: Lysmata Debelius Breeding Log

Postby PaulG » Sun Dec 12, 2010 4:44 pm

spawner wrote:Yea that one is in the last stage. Did you starve your L. amb yet?


Haven't had a spawn of L.Ambioensis as yet, should be another day or 2
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Re: Lysmata Debelius Breeding Log

Postby PaulG » Sun Dec 19, 2010 7:59 pm

Not much to update with these guys, I still have 41 larvae, some have gotten larger.. others appear to be marking time.... the waiting continues.....
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Re: Lysmata Debelius Breeding Log

Postby PaulG » Thu Jan 13, 2011 1:25 am

These guys are still 'twiddling their pleopods' aka doing nothing!

I've only lost another 3 larvae so this should make 38 larvae left, I have not done another count as the tub they are in is still pretty clean and there has not been another outbreak of hydroids thankfully.

Today I gave them a very expensive meal... a dozen or so small Orchid dottybacks (don't ask, I don't want to talk about it :evil: ) but it was better than the garden.

I hope these guys settle SOON
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Re: Lysmata Debelius Breeding Log

Postby jolson » Thu Jan 13, 2011 8:38 am

feeding Orchid dottybacks to your larvae thats extreme you must be running out of tank space or something
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Re: Lysmata Debelius Breeding Log

Postby r33fking » Thu Jan 13, 2011 2:00 pm

did you see the shrimp larvae taking the fish fry?
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Re: Lysmata Debelius Breeding Log

Postby PaulG » Thu Jan 13, 2011 5:42 pm

r33fking wrote:did you see the shrimp larvae taking the fish fry?


They latched on for probably 20 minutes or so had a munch and then gave up, so I syphoned them out.
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Re: Lysmata Debelius Breeding Log

Postby aantreklik_jared » Sat Jan 15, 2011 2:59 am

they do take algae enriched ongrown artemia at that size... they hold onto them and eat them piece by piece while the artemia are still swimming around
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Re: Lysmata Debelius Breeding Log

Postby PaulG » Sat Jan 15, 2011 5:48 pm

aantreklik_jared wrote:they do take algae enriched ongrown artemia at that size... they hold onto them and eat them piece by piece while the artemia are still swimming around



yep they quite often get fully grown artemia
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Re: Lysmata Debelius Breeding Log

Postby PaulG » Sun Jan 23, 2011 4:47 am

And we have success!!!!!!!

I was checking over the larvae this evening and found a settled blood shrimp :D :D :D :D :D (insert little dance here)


No pics as I didn't want to disturb it and since its in a BRT getting a pic of anything is almost impossible, as more settle out I'll grab one and hopefully not sacrifice it.
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Re: Lysmata Debelius Breeding Log

Postby r33fking » Sun Jan 23, 2011 2:36 pm

FANTASTIC!!!!!!
how old is the post larvae?
great job!
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Re: Lysmata Debelius Breeding Log

Postby PaulG » Sun Jan 23, 2011 4:10 pm

r33fking wrote:FANTASTIC!!!!!!
how old is the post larvae?
great job!


Thanks r33fking,
I'm guessing to mean how old was the larvae before settlement? If so of was 133 days old.

If you do mean the post larvae, when I discovered it it was still swimming and and still had it a number of its larvae legs, so it was very recent as it was 3/4 the way through settlement.

A second larvae settled out o overnight as well, so 1 more and ill have beaten my previous record with these guys.... o still have approx 30 larvae left.
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Re: Lysmata Debelius Breeding Log

Postby Amie » Sun Jan 23, 2011 8:41 pm

Congratulations!!
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Re: Lysmata Debelius Breeding Log

Postby PaulG » Tue Jan 25, 2011 6:02 am

Here is some pics

The 2 settled Shrimp
Image

The remaining Horde (32 if I counted correctly)
Image

As you can tell I've had to fish them out so I can remove the start of a rather nasty hydroid infestation.... again...
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Re: Lysmata Debelius Breeding Log

Postby PaulG » Wed Jan 26, 2011 12:10 am

Pics should work now!
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Re: Lysmata Debelius Breeding Log

Postby aomont » Wed Jan 26, 2011 12:50 am

Working nice ! ;)
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Re: Lysmata Debelius Breeding Log

Postby PaulG » Wed Jan 26, 2011 6:38 am

Its raining Blood Shrimp!


Another 3 settled out today :D
So far a total of 5 have settled

I knew I should of suggested these guys for the BC2011 Invert species lol
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Re: Lysmata Debelius Breeding Log

Postby Suzy » Wed Jan 26, 2011 7:46 pm

There's always next year!
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Re: Lysmata Debelius Breeding Log

Postby PaulG » Wed May 04, 2011 9:21 pm

A bit of an update....

In the end I managed to get 10 to settlement unfortunatly all but 1 died, still unsure of what the story is here, I had 3 that I moved inot other tanks and they just vanished, the raminder just started vanishing with no remains found.

The last 2 that I had, I found one that appeared to have dided during moulting, the remaining Blood shrimp I have left is doing fine, almost 20mm in size now. I'll try and get some new pics when I can capture the little guy.
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Re: Lysmata Debelius Breeding Log

Postby spawner » Wed May 04, 2011 11:03 pm

Paul, we often see these types of shrimp die after settlement due poor molts. I think a lot of it is caused by bacterial issues. It's a hard pill to shallow when you spend weeks and weeks rearing them.

What type of tank did you have them in once they settled?
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Re: Lysmata Debelius Breeding Log

Postby PaulG » Wed May 04, 2011 11:24 pm

Hi Andy,

I moved 2 into the broodstock system into the same tank as several sexy shrimp, I also moved 2 to a sump in teh reeftank inside the house, the remainder I left in the larval 'tank' which is a 35Litre BRT.
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Re: Lysmata Debelius Breeding Log

Postby spawner » Wed May 04, 2011 11:37 pm

Could they walk normally when they settled?
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Re: Lysmata Debelius Breeding Log

Postby PaulG » Wed May 04, 2011 11:50 pm

Yes, they could
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Re: Lysmata Debelius Breeding Log

Postby PaulG » Sun May 08, 2011 2:25 am

Here is a pic of the lone survivor, the coin in the image ai 19.5mm in diameter. I beleive this shrimp is 4 months old

IMG_2341.JPG


[img ]https://lh5.googleusercontent.com/_h-U2MGja2zA/TcYCenXQvaI/AAAAAAAAAF8/Nw0MEUI9zpU/IMG_2341.JPG[/ img]
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Last edited by Amie on Wed Feb 26, 2014 9:13 am, edited 1 time in total.
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Re: Lysmata Debelius Breeding Log

Postby spawner » Sun May 08, 2011 10:12 am

he looks great. Spot pattern is well developed.
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Re: Lysmata Debelius Breeding Log

Postby Aquazoa » Sun May 08, 2011 4:53 pm

Hey Paul,
My congratulations to you on your success with completing the debelius life cycle...You're one up on me there.
For what it's worth back when I was raising peppermints I soon found a real need for a dedicated growout system especially as I was dealing with some 200+ postlarvae. The first time I raised them in 2003 I got nearly 80 and put them all in a 10 gallon and every time one tried to molt it was cannibalized by all the rest.
Eventually I created a system with stainless steel shelves (like those used in hotel banquets) with shallow plastic storage trays for growout. I even went so far as to make hundreds of plastic cups with squares cut out on their sides and wrapped with windowscreen for each individual shrimp. The problem with that was that the water in the cups would get stagnant and fetid. Also the small space each shrimp was in inhibited growth from my observation.
Larger screened partitions would have been the solution there.
If you ever get a chance to check out a wonderful article about Homarid Lobster Hatcheries by Nicosia and Lavalli (51 pages), it shows diagrams of growout stackable trays for lobsters in a Scottish hatchery that is much like mine. A really cool feature of that system is a siphon feature that flushes the trays with new water periodically keeping the lobsters' compartment water freshened. Interestingly peppermint rearing is very nearly identical to lobster culture.
Now I know none of us could hope to have that scale of growout with postlarval debelius (if only!), but tiny postlarval shrimp are extremely delicate and do indeed tend to just disappear in regular aquaria. What with all the work put into raising them, I make sure they are grown out individually in meticulously screened safe spaces, fed well, with no possibility of cannibalism.

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