|
General
|
| Name: |
Matt Pedersen ( mPedersen ) Site: MarineLife Aquarium Society of Michigan |
| Species: |
Elysia diomedea ( Class: D, Points: 165 ) 
|
| Link to Journal: |
http://www.masm.org/mForums/tm.aspx?m=35852
|
| Hatch Details |
| Spawn Date: |
11/11/2007
|
| Spawn Time of Day: |
unknown |
| Hatch Date: |
11/15/2007
4 Days After Spawn
|
|
Hatch Time of Day: |
evening
|
| Where Hatched: |
under microscope! I've found you can easily remove the egg ribbon at any point in development (if it's on glass) with the gentle use of a razor blade. |
| Eggs Removed Pre-Hatch: |
Yes
|
| Larvae Removed Post-Hatch: |
Yes
|
| Yolk Sac: |
Unable to Tell
|
| # Hatched |
hundreds or thousands |
| # Not Hatched |
unknown |
| Larvae Size |
truly tiny! I.e. 200 microns maybe? Maybe less? |
| First Food: |
Offered live phytoplankton. My records don't indicate exactly what types, but it's safe to assume that Nannochloropsis and Tetraselmis were offered. T-Iso may have been included, and there's a slim chance that Rhodomonas lens was also offered. |
Larvae Description:
( Do larvae have eyes, mouth, gut, attracted to light, etc?) |
Like tiny clear snails that swim ;) |
|
Tank Parameters
|
|
Temperature: |
82F
|
|
PH: |
not
|
|
Specific Gravity: |
1.025
|
Size:
(Gallons) |
6 gallon nanocube |
|
Dimensions: |
X
X
|
|
Lighting:
|
modified / upgraded nanocustoms twin power compacts |
|
Lighting Schedule:
|
12 hours on, on timer |
| Other Details |
| Other Information: |
The SPAWN date on this report is approximate..I did not record what date the spawn occurred for the ribbon I recorded hatching. My records overall indicate 4-5 days between spawning and hatching, which may be partially due to temperature affecting development. In general, if the eggs were spawned on a Monday, you might want to be collecting the egg ribbon for hatch on the following Thursday night.
I never managed to rear any, although there are sporadic annecdotal reports from hobbyists who've claimed to have them spawn and grow out in their tanks for similar species. There are also laboratory studies that suggest the prior wouldn't be possible. See my breeding journal for more links and information (and there are even MORE links in the subsequent earlier breeding logs).
Elysia diomedia and it's relatives E. clarkii and E. crispata make short work of the pesky nuisance algae Bryposis. These are great aquarium critters and it would be truly wonderful to be able to purchase them as captive bred animals. Therefore, I strongly encourage people to try to rear these species! |