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Breeding Journal, Species: Columbellid cf. euplica
Sunday, January 2, 2011 10:48 PM
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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: Columbellid cf. euplica Social Structure: group Size of Individuals: 1/2" Age of Individuals: unknown Date added to Tank: March 2009 Broodstock Tank Details Size of Tank: 100 gallon cube Substrate Details: live sand Filtration Details: live sand, live rock, skimmer Water Changes: ~25% every other week or so Water Temperature: 78-82 Lighting: 175w MH, VHO actinic supplementation Lighting Cycle: 10 on, 14 off Other Tank Inhabitants: various fish and coral Broodstock Feeding Details Food Types: algae Feeding Schedule: omnipresent Spawning Details Date of First Spawn: About a week after I got them Spawn Time of Day: any time Dates of Consecutive Spawns: doesn't seem to be any rhyme or reason Courtship Details: none really Egg Size: 1mm or less in diameter Egg Color: white Egg Count: 5-7 per capsule usually Hatch Details Hatch Date: ~4 weeks after laying Hatch Time of Day: various, can be any time # Days after Spawn: 28 Larvae Description: hatch out as tiny versions of adults Larval Tank Details Temperature: 78-82 Size of Larval Tank: 100 gallon cube Substrate Details: sand Other Tank Decor: sand and live rock Filtration Details: live sand, live rock, skimmer Lighting: 175w MH and actinic VHO supplementation Lighting Cycle: 10 on, 14 off Water Changes: 25% every other week Larval Feeding Details Food Types: algae Feeding Schedule: omnipresent Metamorphosis/Settlement Date of Settlement Start: all development occurs in the egg capsule, young hatch out as smaller versions of adults; for one batch of eggs, settlement/hatching occurred 1/6 Days after Hatch: Actually occurs before hatching, but they're considered one in the same for this species, so ~28 days after laying Date of Settlement End: 1/6/11 Description of Fry: 1mm or so, tiny version of adults, but they're white with a small tan spot
Grow-Out Tank Details Temperature: 76-82 Size of Grow-Out Tank: 100 gallon cube Substrate Details: live sand Other Tank Decor: live rock, corals Filtration Details: live rock, live sand, skimmer Lighting: 175w MH, VHO actinic supplementation Lighting Cycle: 10 on 14 off Water Changes: 25% every other week Size at Transfer: not transferred Age at Transfer: n/a Grow-Out Feeding Details Food Types: algae Feeding Schedule: omnipresent Additional Information Miscellaneous Information: The entire life cycle occurs in my reef tank. There is no transfer and I do not feed these guys directly, they eat the algae off my rock and glass. I purchased these snails from Indo Pacific Sea Farm in 2009 as "Strombus maculatus." 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 Chelsey on Friday, January 7, 2011 2:34 PM>
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Re: Breeding Journal, Species: Columbellid cf. euplica
Monday, January 3, 2011 4:28 PM
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Here is an egg capsule with some well developed baby snails inside...roughly 20 days old or so. 
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Re: Breeding Journal, Species: Columbellid cf. euplica
Wednesday, January 5, 2011 3:30 PM
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Adult:  Eggs, ~24 hours old: 
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Re: Breeding Journal, Species: Columbellid cf. euplica
Friday, January 14, 2011 9:02 PM
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The same two egg capsules as above, just 10 days later: 
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Re: Breeding Journal, Species: Columbellid cf. euplica
Friday, January 14, 2011 10:41 PM
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Looks like some are starting to get the mickey mouse ears. Cool! Only a couple of weeks to go.
--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: Columbellid cf. euplica
Friday, January 14, 2011 11:44 PM
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Yep! I've had these guys spawn multiple times before, but in order to get a baby snail out of the case (for my report to be accepted) I have to watch the capsule like a hawk.
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Re: Breeding Journal, Species: Columbellid cf. euplica
Saturday, January 15, 2011 10:42 PM
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I'd imagine if you get proper shots of the empty capsule after the baby exited it would still count... though I'd expect you to be able to produce photo evidence of settlement later on  catching one of these guys actually exiting the capsule is tricky for sure. With my Nassarius I was lucky enough to catch the capsule with one left in and the rest exited through a hole... yaay for me
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Re: Breeding Journal, Species: Columbellid cf. euplica
Saturday, January 15, 2011 11:58 PM
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 Originally Posted by catching one of these guys actually exiting the capsule is tricky for sure. Or, catch 'em with the plug off before they manage to find their way out. http://www.advancedaquarist.com/2009/11/aafeature_album/Photo06.jpg/variant/medium Chelsey, they don't move so very fast at first, but they head down for the sandbed as soon as they can. I've caught photos of tiny ones when taking macro shots of the life down in top layer of the sand grains. If that doesn't work, trap some nori behind a tank magnet down near the sandbed. They'll sneak into the space between magnet and glass to eat off the nori. Turn the magnet around and you should be able to see them.
--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: Columbellid cf. euplica
Sunday, January 16, 2011 6:01 PM
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12 days: 
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Re: Breeding Journal, Species: Columbellid cf. euplica
Monday, January 24, 2011 8:05 PM
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Snails/egg sack is now 20 days old, and based on what I can see the snails are starting to leave the egg capsule? Yesterday there were 5-6 snails, today there are 3. 
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Re: Breeding Journal, Species: Columbellid cf. euplica
Monday, January 24, 2011 9:19 PM
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It definitely looks like the plug is dissolving (if it hasn't already). And the velar lobes have pulled around to become the ... snout? trunk? ... whatever.
I had some that I was keeping an eye on in a new tank and they seemed to come out early as well. Must be in the air.
--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: Columbellid cf. euplica
Tuesday, January 25, 2011 10:45 PM
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Guys (all you's with this snail) do me a favor in the future and try and keep tabs on the time they spend in the capsule, it's of great interest to me for some reason... lol.
In any case it does look as though you've got some benthic birth there!
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Re: Breeding Journal, Species: Columbellid cf. euplica
Wednesday, January 26, 2011 7:33 AM
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It seems oddly variable. I was paying attention to some in the new scallop tank I have and I believe that they came out about a week-and-a-half before I expected them to. But it may be that they were a degree higher in temp or something. Still, that's _way_ early.
Chelsey's group above was almost a week ahead of the eggs that I really paid attention to.
More mature parents? Warmer temps? No clue.
--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: Columbellid cf. euplica
Thursday, January 27, 2011 5:57 PM
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those are really cool pictures, ive never really looked into the details of snail development. awesome stuff!!!!
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