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Breeding Journal, Species: Cerithium atratum
Friday, March 1, 2013 8:13 AM
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Breeding Journal DataSheet This first post should be updated regularly to include new information as events take place or changes are made to your system General Species: Cerithium atratum Social Structure: Pair Size of Individuals: 1.75" Age of Individuals: Unknown, have had them for about two years Date added to Tank: 28 January 2013, 13 February 2013 Broodstock Tank Details Size of Tank: 30 Gallon/150g reef Substrate Details: Deep Sand Bed Filtration Details: AquaTech Power Filter 5-15/Biological Water Changes: Annually Water Temperature: 78°F Lighting: 5 T8 Fixture designed for a sump tank Lighting Cycle: 16 on, 8 off Other Tank Inhabitants: Various snails, a Bicolor Blenny/ Various Anthias and wrasses, A pair of purple firefish, Bicolor Blenny Broodstock Feeding Details Food Types: Algae Feeding Schedule: Any time throughout the day, the t8's make sure there is a constant supply of algae growing in the tank Spawning Details Date of First Spawn: 27 February 2013, 3/19/2013 Spawn Time of Day: Around 6 am Dates of Consecutive Spawns: So far, every two days Courtship Details: Male and female meet and exchange sperm, male leaves and female lays eggs on glass Egg Size: 1-2mm Egg Color: White Egg Count: + - 100 Hatch Details Hatch Date: 3/23/2013 Hatch Time of Day: From 10:00pm to 5:00am # Days after Spawn: 4 days Larvae Description: They have a shell and a mouth, looks like a small snail Larval Tank Details Temperature: Size of Larval Tank: Substrate Details: Other Tank Decor: Filtration Details: Lighting: Lighting Cycle: Water Changes: Larval Feeding Details Food Types: Feeding Schedule: Metamorphosis/Settlement Date of Settlement Start: Days after Hatch: Date of Settlement End: Description of Fry: Grow-Out Tank Details Temperature: Size of Grow-Out Tank: Substrate Details: Other Tank Decor: Filtration Details: Lighting: Lighting Cycle: Water Changes: Size at Transfer: Age at Transfer: Grow-Out Feeding Details Food Types: Feeding Schedule: Additional Information (No Pictures or Videos in the Section Please) Miscellaneous Information: The original tank had to be shutdown due to a leak in it, and only the blenny lived through it, and I moved him to the 150 gallon. Then afterwards I setup the 150 and got a couple pairs (2-3) of cerith snails to continue my research You will be required to provide photographic evidence in this thread of each event submitted for the MBI Program. If your thread does not contain these photos the MBI Committee will not be able to approve your reports.
<message edited by Amphispur on Tuesday, May 14, 2013 12:02 PM>
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Re: Breeding Journal, Species: Cerithium litteratum
Friday, March 1, 2013 8:15 AM
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First time they spawned, female is laying the last of the eggs in this picture: Second time, which I woke up to this morning
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Re: Breeding Journal, Species: Cerithium litteratum
Friday, March 1, 2013 8:17 AM
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I believe that the main trigger for spawning, is that I just let the algae grow crazy in this tank and there is not any flow at all throughout the whole tank
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Re: Breeding Journal, Species: Cerithium litteratum
Sunday, March 17, 2013 10:11 AM
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So, it seems like all my tanks are on "Snail Fever." Just last night, a group of 4 spawned 5 times in my 150g. I will attempt to raise the small snails with Isocrysis galbana.
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Re: Breeding Journal, Species: Cerithium litteratum
Sunday, March 24, 2013 1:41 PM
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After many MANY spawns, I finally managed to snag a photo of one newly hatched in my 150g, which could be any out of 5+ spawns and I could not figure out which one. But this is the only type of snail in the tank so it is one of their babies
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Re: Breeding Journal, Species: Cerithium litteratum
Tuesday, April 2, 2013 5:59 PM
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Here is a higher quality macro shot of one. Lens arrived 10 min ago, and I was shocked by the quality. You can even see the, eyes? I think there eyes. But anyways this thing is so small that it's too small for me to look at for awhile, so around 1mm ish
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Re: Breeding Journal, Species: Cerithium litteratum
Thursday, April 11, 2013 1:52 PM
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I'm a little worried that the snail you have pictured there might be a hitchhiker. It's hard to see the whorls on the end of the shell, but it doesn't look like the beginnings of the cerith shell of the mother from here. The first few whorls on the end of the shell are really characteristic of the species and tell a lot about how the snails develop. Any possibility of getting another photo focused on the end?
--Andy, the bucket man. "Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886
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Re: Breeding Journal, Species: Cerithium litteratum
Thursday, April 11, 2013 3:29 PM
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I will try and get a better one tonight. I've had snails breed before and even when I had turbos breed, they started out looking like the photo, just the shell was a little different
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Re: Breeding Journal, Species: Cerithium litteratum
Thursday, April 11, 2013 3:53 PM
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Yeah, certainly. But those first few whorls tells you a ton about their juvenile development.
--Andy, the bucket man. "Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886
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Re: Breeding Journal, Species: Cerithium litteratum
Thursday, April 11, 2013 5:00 PM
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I have a feeling a good experiment could be developing in my mind.......
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Re: Breeding Journal, Species: Cerithium litteratum
Thursday, April 11, 2013 6:08 PM
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So Umm_Fish, pretty much what your saying is that the outside of the shell or the "whirling," can tell us the species as a juvenile? Can it tell us any more about the snail or is it just mainly used for that purpose?
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Re: Breeding Journal, Species: Cerithium litteratum
Thursday, April 11, 2013 6:31 PM
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It's not so much about species ID (that's more where the foot emerges from the shell), although the early whorls should be similar to the adults'. It tells you about early life history, so snails with a similar early development will wind up with similar early whorls, if that makes sense. My image server is down right now (damn video card and I don't really have time to mess with it) or I'd look for some examples. Let me see if I can find some information and I'll be back.
--Andy, the bucket man. "Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886
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Re: Breeding Journal, Species: Cerithium litteratum
Thursday, April 11, 2013 7:07 PM
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Okay, so take a look at this image. http://www.advancedaquarist.com/2009/11/aafeature_album/Photo05.jpg/image_preview These snails are still in the egg capsule and are already on the second whorl. That's a good sign. These are direct developers and have no pelagic phase. The first whorl is really small and right next to the second one. Here's the adult of that species: [Edit: It's not going to work as a direct display. Maybe I can just make it a like.] http://www.advancedaquarist.com/2009/11/aafeature_album/Photo07a.jpg Notice how there are just a couple of whorls that are small and close together (the ones that develop in the egg capsule), then you get a huge jump in size. Those are the characteristics of direct development. Snails pretty much continuously grow from larvae to adulthood. If they spend a long time in the plankton, though, they are going through a period where they won't be able to get large quickly (or else they will drop out of the plankton). So they will tend to develop long, thinner tips (while still continuously growing) to their shells that correspond to their life in the plankton. Compare to image on the bottom here: http://www.liveaquaria.com/images/categories/product/p-26100-snail-ca.jpg See how that's a much more gradual gaining of size that looks like it took the snail a whole bunch of whorls before it got big? Also, those first few whorls are really, really small. That's a cerith snail that likely spent a long time post-hatch in larval development. Not all ceriths do that, btw. I have one in my tanks that manages to reproduce. I think it has a relatively short, non-feeding planktonic stage. It hatches way small, though. It doesn't always work out that you will see it this obviously. As snails get older, the tips of their shell tend to erode away. But the first adult photo above is a nice young adult so you can see it pretty well.
--Andy, the bucket man. "Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886
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Re: Breeding Journal, Species: Cerithium litteratum
Thursday, April 11, 2013 7:11 PM
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Sorry that all the images had to be put up as links. I'm not sure why it wasn't working.
--Andy, the bucket man. "Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886
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Re: Breeding Journal, Species: Cerithium litteratum
Thursday, April 11, 2013 7:54 PM
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That first image didn't really work. Wow thanks for all that info! That answered my question perfectly. I was shocked that they went through these whorles, or at least more than one! Thanks!
<message edited by Amphispur on Sunday, June 30, 2013 4:23 PM>
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Re: Breeding Journal, Species: Cerithium litteratum
Thursday, April 11, 2013 7:55 PM
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Sorry, the FIRST image didnt work
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Re: Breeding Journal, Species: Cerithium litteratum
Tuesday, May 14, 2013 2:39 AM
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None of those image links are working...
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Re: Breeding Journal, Species: Cerithium litteratum
Tuesday, May 14, 2013 12:42 PM
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--Andy, the bucket man. "Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886
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Re: Breeding Journal, Species: Cerithium litteratum
Tuesday, May 14, 2013 1:09 PM
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No problem! Thanks!
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Re: Breeding Journal, Species: Cerithium litteratum
Sunday, June 30, 2013 3:26 PM
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Ok so now to update this again, as usual, these snails are acting like there on viagra with so many spawns in the 150g. I FINALLY figured out a way to get SOME eggs without killing them all by pulling on the strand keeping them to the wall. It was so simple but I never thought of it. I used a big cooking spoon, and put a lot of pressure towards me and scraped them out. I managed to get a good 20-30 viable "hopefully" eggs from it. They will be moving into a small one gallon container for hatching and photographic evidence and possibly for throughout larval stages as well. The eggs I took were laid 3 days ago on the 27th sometime around 5 in the morning.
<message edited by Amphispur on Sunday, June 30, 2013 4:19 PM>
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