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Breeding Journal, Species: Columbellid cf. euplica

Since my aquarium is overrun with reproducing Columbellid snails, I figured I should join the Marine Breeding Initiative.  These snails are commonly called the “Hawaiian Strombus” snails in captivity. 

From their site:

“The Marine Breeding Initiative was created as a tool to encourage marine aquaria hobbyists to get involved in the captive breeding of marine organisms. The MBI was designed with the help of leading experts in the breeding of marine ornamentals to be a standardized award system and database that can be easily adopted by aquarium societies and site owners to promote captive breeding amongst their members.

There are many pressures on todays tropical reef environments and the practice of captive breeding to reduce the need for wild caught specimens is one way we as hobbyists can reduce those pressures. The MBI creates a standardized model that uses a central database to share information between all MBI sites while rewarding and encouraging hobbyists to begin breeding and existing breeders to tackle more difficult species and try new techniques.”
This was my entry documenting the breeding.
General
Species: Columbellid cf. euplica
Social Structure: Group
Size of Individuals: 1/2″ long
Age of Individuals: Unknown
Date added to Tank: May 2009

Broodstock Tank Details
Size of Tank: 40g
Substrate Details: Bare bottom
Filtration Details: Live Rock, Skimmer, Carbon/GFO Reactor
Water Changes: 10% Weekly
Water Temperature: 76 degrees
Lighting: 6 x 39W T-5
Lighting Cycle: 8 hours on
Other Tank Inhabitants: Blue legged crabs, nerites, corals

Broodstock Feeding Details
Food Types: Formula Two Pellets and DIY Frozen Blended Seafood
Feeding Schedule: 2x/week

Spawning Details
Date of First Spawn: Within days after introduction to the aquarium
Spawn Time of Day: Unknown

Dates of Consecutive Spawns: Constantly
Courtship Details: None apparent yet
Egg Size: <1mm
Egg Color: White
Egg Count: 6-7 in each packet

Hatch Details
Hatch Date: 2/6/2012

Hatch Time of Day: Unknown
# Days after Spawn: ~28 days
Larvae Description: Adult-like

Larval Tank Details
Temperature: 76
Size of Larval Tank: 40g
Substrate Details: Bare Bottom
Other Tank Decor: Live Rock
Filtration Details: Live Rock, Skimmer, GFO/Carbon Media Reactor
Lighting: 6 x 39W T-5
Lighting Cycle: 8 on
Water Changes: 10% weekly

Larval Feeding Details
Food Types: Algaes
Feeding Schedule: Constant

Metamorphosis/Settlement
Date of Settlement Start: N/A
Days after Hatch: N/A
Date of Settlement End: N/A
Description of Fry: Appear as small adults

Grow-Out Tank Details
Temperature: 76
Size of Grow-Out Tank: 40g
Substrate Details: Bare Bottom
Other Tank Decor: Live Rock
Filtration Details: Live Rock, Skimmer, GFO/Carbon Media Reactor
Lighting: 6 x 39W T-5
Lighting Cycle: 8 hr on
Water Changes: 10% weekly
Size at Transfer: N/A
Age at Transfer: N/A

Grow-Out Feeding Details
Food Types: Algae
Feeding Schedule: Constant

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.

Egg Capsule:

2/2/2012
2/5/2012

~1 week old from separate hatch
Size reference of ~1 week old
Update 14 June 2012:  I’ve found that these snails are able to make some sort of mucus thread that they are able to slide down in order to drop themselves lower in the tank.  I also got to watch a snail glide across the top of the water surface, make a thread (only held by the surface tension), and then drop down to the bottom of the tank.  It’s quite fascinating to watch!

Great Reference Info (with photos):  http://www.advancedaquarist.com/2009/11/aafeature

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