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Re:Peppermint Shrimp Spawn (L.boggessi)
Saturday, June 4, 2011 12:46 PM
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Well speaking about the success of the breeding system, we have had intermitten power outages all day, this last one was about 1 1/2 hours...during such events the breeding chambers all become independent and hold water with no adverse effects on the larvae or broodstock (however, this is dependent on ambient temperature). A few random thoughts...if I have to add a small pump in the water jacket between the inner/outer chambers of the breeding chamber.....what I might do is add a small 9-watt submersible UV I'll hold that thought. Also, the inner chamber design could also be incorporated right into the design of a sump or if there is already room in an existing sump an inner chamber could easily be added (whereby the sump itself would become the outer chamber of the breeding chamber). This would make a breeding set-up possible for any and every hobbyist around the globe to incorporate into their reef or salt water set-ups. How is that for a home aquaculture explosion....maybe even a movement of truly conscientious aquarists!  By doing incorporating an inner chamber to every sump....well, it would take no time and very little effort to toss in a few snails or what have you...makes a lot of sense to me.
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Re:Peppermint Shrimp Spawn (L.boggessi)
Sunday, June 5, 2011 10:17 AM
( permalink)
Today is day 5 and there are no larvae left from this batch. I'm pretty certain that this was a weak or poor quality hatch...just based on the observations of how the broodstock are devouring this new food and the quantities that they are able to consume compared to their previous diet of FW cyclops. I am expecting that this synopsis will be enforced as I continue to work with this species. So mama's expected due date for batch two is June 16th which is only 11 days away....stay tuned to this thread. 
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Re:Peppermint Shrimp Spawn (L.boggessi)
Sunday, June 12, 2011 6:36 PM
( permalink)
So now we are getting close to mama shrimp's expected due date of June 14th, in preparation I moved her from the broodstock tank to the nursery. The eggs look quite engorged but are still an olive green colour, over the next few days they'll start changing colour and the day of "delivery" (or a day before) the eyes spots of the larvae will begin to show. Mama is quite comfortable in the nursery and on occasion cleans the eggs with her rear legs. This time I've added four very small Nassarius snails to the nursery to help with any uneated food. For this batch I'm going to stay with feeding the larvae shaved FW cyclops. In a batch or two I may moved over to NHBBS but for now I want to see if there is another food source that is easier (or more convenient) for home hobbyists to use.
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Re:Peppermint Shrimp Spawn (L.boggessi)
Tuesday, June 14, 2011 7:02 PM
( permalink)
Today was the expected due date for the larvae. No larvae after 14 days, but mama's eggs are starting to look a green/grey colour so my guess is we are still about 2-3 days off, which will bring this batch of eggs to 16-17 days. Now while I was feeding them tonight, the other one is carrying eggs too! This is a small clutch, compared to the other one. Not sure when this happened, perhaps at the same time...not really sure, I'll have to keep close attention to the egg colour on the second one and move it to the nursery just before the hatch. With any luck I should have two spawns within a few days of each other. ......stay tuned!
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Re:Peppermint Shrimp Spawn (L.boggessi)
Monday, June 20, 2011 9:59 AM
( permalink)
It's day 20 and both are still holding the eggs.....
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Re:Peppermint Shrimp Spawn (L.boggessi)
Tuesday, June 21, 2011 5:32 PM
( permalink)
This is day 21...on one of the PS the eggs are completely silver and full of eye spots...so I am expecting one batch of larvae after lights out tonight...the other PS is still holding but the eggs are starting to look green/grey so the second batch should follow in a few more days...
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Re:Peppermint Shrimp Spawn (L.boggessi)
Wednesday, June 22, 2011 10:42 AM
( permalink)
Quick update....still no larvae! Both PS are STILL holding and the eggs on both are now a distinct silver and plenty of eye spots are visible to the naked eye...perhaps I'll have a nursery full of larvae tonight. Now a note about the snails that I've added to the nursery, I added them too soon! On several occassions I've caught the adult PS killing them for a little escargot even though they are very well fed....so not a good idea to add the snails until after the larvae have arrived and the adults have been moved back to the broodstock tank. With this new diet that the adults are on I've observed significant growth and of course this prolonged period of carrying the eggs. We are now at day 22, I was of the understanding that it only takes 10-14 days for the larvae to hatch as was my experience with the first batch. Now, I'm starting to think that this prolonged period is far better and should produce higher quality larvae (time will tell) and that the previous 14 day cycle may well be a premature cycle as a result of poor nutrition (this is only an idea based on what I'm currently observing). Now as far as the system goes, I am running a set of NO flourescents across the broodstock and the nursery; however, because the nursery has very little flow through I am starting to see the development of cyano , so the plan is to move the lights to a position several feet above to create more of an ambient lighting effect. If this doesn't help with the cyano then I'll switch to a light source for the broodstock only tank and leave the nursery with no direct lights. (The photoperiod is important to get the PS to keep spawning). ....my next entry should be the announcment of the larvae (I hope).
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Re:Peppermint Shrimp Spawn (L.boggessi)
Thursday, June 23, 2011 10:12 AM
( permalink)
Day 23..............both still holding................
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Re:Peppermint Shrimp Spawn (L.boggessi)
Thursday, June 23, 2011 12:12 PM
( permalink)
Here is another very interesting occurrence.....today, while feeding the adult broodstock I noticed an empty carapace, the adults have undergone a full molt while holding the eggs at day 23 and it has not effected the eggs at all. I didn't know that this was possible. So while we are waiting on this ever so slow larvae to make their grand appearance, let me mention something about feeding time. At feeding time I simply slice off a sliver of my frozen seafood goo and stick it to the end of my finger, each PS comes up to the surface in turn hangs on to my finger then takes off to the bottom of the tank again with a nice little clump of food. It has gotten to the point that they only have to see me coming and up they come!
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Re:Peppermint Shrimp Spawn (L.boggessi)
Thursday, June 23, 2011 3:47 PM
( permalink)
 Originally Posted by DeneBanger
Here is another very interesting occurrence.....today, while feeding the adult broodstock I noticed an empty carapace, the adults have undergone a full molt while holding the eggs at day 23 and it has not effected the eggs at all. I didn't know that this was possible.
It is not possible.This is a new egg batch. 
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Re:Peppermint Shrimp Spawn (L.boggessi)
Thursday, June 23, 2011 4:04 PM
( permalink)
Luis is correct. Mating is just after a new molt before the new skin hardens.
--Andy, the bucket man. "Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886
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Re:Peppermint Shrimp Spawn (L.boggessi)
Thursday, June 23, 2011 7:41 PM
( permalink)
Gentlemen, I hear what you are both saying and would have responded the same way; however, I have the carapace and this is definitely not a new batch of eggs... the eggs are pure silver with eye spots and are almost ready for release. So this is an event that we need to make note of...because it is most certainly happening (or should I say has most certainly taken place).
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Re:Peppermint Shrimp Spawn (L.boggessi)
Thursday, June 23, 2011 8:33 PM
( permalink)
Here is a pic of the carapace of the molt that occurred on Day 23....and also a pic of the PS still holding at day 23. Please note the reflectlivity in the eggs and also the batch still forming behind the head......gentlemen this is not a new batch of eggs and it is possible for them to molt while still holding, here are the pics........... http://www.marinebreeder.org/phpbb/viewtopic.php?f=201&t=9474&p=83722 .
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Re:Peppermint Shrimp Spawn (L.boggessi)
Friday, June 24, 2011 8:09 AM
( permalink)
How do you know that it's the same shrimp?
--Andy, the bucket man. "Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886
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Re:Peppermint Shrimp Spawn (L.boggessi)
Friday, June 24, 2011 10:05 AM
( permalink)
I know its the same shrimp because it was transferred to the nursery....
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Re:Peppermint Shrimp Spawn (L.boggessi)
Saturday, June 25, 2011 9:29 AM
( permalink)
Last night the larvae arrived! Approximate count 20 at day 24-25! There names are Sally, Susan, Robin, Brett, Marcus Apollius Mentis.......LOL! Just kidding! A small batch but the PS are still quite young. These are doing the same as the first batch, they are attaching themselves to the sides of the nursery, for those that have attached themselves to the sides their positions are all the same, heads down and abdomens gently moving in the water column. Now it is time to feed the rascals.
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Re:Peppermint Shrimp Spawn (L.boggessi)
Sunday, June 26, 2011 11:26 AM
( permalink)
Day 2 the larvae seem to be doing very well, this morning I noticed that they have developed stalked eyes so now we are at zoeae 2. At day two this batch seems alot larger than the first, best guess is that they are approx. 2 maybe 3 mm long. Here's another observation, when I shine a flashlight into the nursery at night I've noticed hundreds of little copepods in the range of 100-200 microns feeding off the microalgae, these weren't there for the previous batch or at least they went unnoticed. I can't tell if they are feeding on them or not but for now I'm going to assume that the presence of the copepods is a good thing. Another note the shrimp that just spawned is holding eggs again, and its mate is still holding....I've lost track of how long the mate has been holding so I'll just keep an eye on the egg development for now.
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