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General
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| Name: |
Matt Pedersen ( mPedersen ) Site: Lake Superior Marine Aquarium Club |
| Species: |
Oxymonacanthus longirostris ( Class: D, Points: 165 ) 
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| Link to Journal: |
http://www.lsmac.org/smf/index.php?topic=140.0
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| Hatch Details |
| Spawn Date: |
10/01/2008
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| Spawn Time of Day: |
5 PM or so |
| Hatch Date: |
10/04/2008
3 Days After Spawn
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Hatch Time of Day: |
between 12:00 AM and 4:40 AM
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| Where Hatched: |
Eggs were removed from broodstock tank immediately after spawning by using a turkey baster to suck them out of the algae and placing them in a specimen cup. I may have actually used a 0.25 gallon specimen cup this first time around, but typically I had b |
| Eggs Removed Pre-Hatch: |
Yes
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| Larvae Removed Post-Hatch: |
Yes
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| Yolk Sac: |
Yes
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| # Hatched |
Maybe 50-100 |
| # Not Hatched |
At least the same |
| Larvae Size |
2.7 mm |
| First Food: |
Rotifers with Greenwater Technique...feeding commences at least 48 hours after hatching (larvae hatch as prolarvae, and are not formed enough to feed until at least 2 days after hatch) |
Larvae Description:
( Do larvae have eyes, mouth, gut, attracted to light, etc?) |
Prolarvae at hatch - no eyes, mouth etc. Just a bright green yolk sack and a spinal cord! |
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Tank Parameters
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Temperature: |
80-82F
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PH: |
not
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Specific Gravity: |
1.025
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Size:
(Gallons) |
0.5 gallon specimen cup, hanging in a 10 gallon tank |
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Dimensions: |
X
X
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Lighting:
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strip light on 10 gallon tank |
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Lighting Schedule:
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manual, probably 12-14 hours per day |
| Other Details |
| Other Information: |
My best successes suggest using a larger container for rearing, and for starting greenwater around the 2 day mark. My best runs to date in the early stages made use of a 4 gallon round drum-style fish bowl in a 10 gallon tank. The first few babies I reared occured in a 2 gallon drum style fishbowl.
Here's what the fishbowl in a tank looked like:
http://www.cichlidrecipe.com/nanoreef08/DSCN3414.jpg
Here's a newly hatched Harlequin Filefish:
http://www.cichlidrecipe.com/nanoreef08/Oxymonacanthus_longirostris_0hph_60X_3.jpg
Here's the same, shortly after feeding around 62 hours:
http://www.cichlidrecipe.com/nanoreef08/DSCN3491.jpg |