Breeding Journal, Species: RSF Collumbellid, probably Euplica

General
Species: Collumbellid, probably Euplica
Social Structure: Group, gonochoristic
Size of Individuals: Large individuals, probably 0.5"
Age of Individuals: In culture for ~one year
Date added to Tank: March 2009

Broodstock Tank Details
Size of Tank: Occur in all my tanks
Substrate Details: Sand to bare bottom
Filtration Details: Water changes, sometimes skimming
Water Changes: ~10 days
Water Temperature: 80ish
Lighting: Various
Lighting Cycle: Various
Other Tank Inhabitants: Various  

Broodstock Feeding Details
Food Types: Algae, good with film algae
Feeding Schedule: At will

Spawning Details
Date of First Spawn: April 2009
Spawn Time of Day: Any time
Dates of Consecutive Spawns: Now spawning constantly
Courtship Details: Males and females meet, males exchange gametes
Egg Size: Small
Egg Color: White
Egg Count: Eight or so per egg capsule

Hatch Details
Hatch Date: Roughly four weeks
Hatch Time of Day: Any
# Days after Spawn: Roughly four weeks
Larvae Description: See photo


Larval Tank Details
Temperature: Main tank (see above)  
Size of Larval Tank:
Substrate Details:
Other Tank Decor:
Filtration Details:
Lighting:
Lighting Cycle:
Water Changes:

Larval Feeding Details
Food Types: Juveniles eat adult diet on hatch
Feeding Schedule:

Metamorphosis/Settlement
Date of Settlement Start: All larval development is within the egg capsule, crawl-away juveniles.
Days after Hatch:
Date of Settlement End:
Description of Fry:

Grow-Out Tank Details
Temperature: Main tank (see above)
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: Same as adults
Feeding Schedule:

Additional Information
Miscellaneous Information:



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.

--Andy, the bucket man.
"Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886

For more information, please see my article here: http://www.advancedaquarist.com/2009/11/aafeature

--Andy, the bucket man.
"Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886

I started with 8-10 individuals of this species one year ago and have now sold or given away over 400 individuals in addition to them populating every tank in my system (> 1,400 gals. worth of tanks). I really need to remove 200-300 more at the moment. I'm thinking of trying to breed clubber mantis shrimp at this point, just for something to do with the excess snails.

A fantastic little snail for a beginner breeder.

Here's the link to their write-up at RSF: http://www.reefstewardshipfoundation.org/forums/showthread.php?t=29

--Andy, the bucket man.
"Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886

Nice article! Would you mind posting some pics in this thread?

http://www.fishtalpropagations.com/#!home/mainPage
"Making captive breeding easier."

Sure. They are fairly large, though.

These eggs are just a few minutes old:



Early larval development:



Here the have suddenly become veliger larvae. (The velar lobes are the "Mickey Mouse" ears on gastropod larvae. The are heavily ciliated and are used for swimming and food capture.) The shell is also forming.



Later stage veligers. Note that the shell is onto its second whorl.



And here, all but one of these snails have made the jump to become juveniles. The velar lobes have pulled together to make a feeding tube. This is what makes these snails so easy to breed. Most snails don't get to this stage while still in the egg casing.



The plug has come off of the egg case and snails are making their escape. The inset photo is a juvenile on the glass.



One of the adults snails:



And one of the mama snails putting eggs on the glass. It's pretty cool how she bends her foot back on itself to get off the eggs without harming them.

--Andy, the bucket man.
"Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886