Breeding Journal, Species: Gnathophyllum americanum

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Bongo Shrimp
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Breeding Journal, Species: Gnathophyllum americanum - Sunday, March 17, 2013 1:04 AM
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:  Gnathophyllum americanum
Social Structure:  Pair
Size of Individuals:  0.75"
Age of Individuals:  Unknown
Date added to Tank:  3/16/13

Broodstock Tank Details
Size of Tank:  0.23g
Substrate Details:  Crushed Coral
Filtration Details:  Circulated tank water      
Water Changes:  Once a week
Water Temperature:  78.5ºF
Lighting:  4 bulb T5
Lighting Cycle:  10 hrs a day
Other Tank Inhabitants:  None

Broodstock Feeding Details
Food Types:  Frozen Mysis
Feeding Schedule: Once a day          

Spawning Details
Date of First Spawn:  Unknown (Acquired with eggs)
Spawn Time of Day: Unknown      
Dates of Consecutive Spawns:  3/30/13
Courtship Details:  Not observed
Egg Size:  0.5 mm (?)
Egg Color: Tan or light orange          
Egg Count:  ~250

Hatch Details
Hatch Date:  3/23/13
Hatch Time of Day: Between 11:00pm and 1:00pm, lights went out at 11:00pm            
# Days after Spawn:  Unknown
Larvae Description:  Mini shrimp with black eyes and yellow stripes


Larval Tank Details
Temperature:  78.5ºF
Size of Larval Tank:  0.5g Kreisel
Substrate Details:  none
Other Tank Decor: none            
Filtration Details:  none
Lighting:  x4 old T5 bulbs
Lighting Cycle:  10 hrs
Water Changes:  none yet

Larval Feeding Details
Food Types:  Newly hatched bbs, refused rotifers 
Feeding Schedule:  constant

Metamorphosis/Settlement
Date of Settlement Start: 
Days after Hatch: 
Date of Settlement End: 
Description of Fry: 

Grow-Out Tank Details

Temperature: 
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: 
Feeding Schedule: 

Additional Information
 
Miscellaneous Information: 
I bought the pair and noticed eggs on the female while I was acclimating.  Will not submit a spawn report since I don't know how long ago they spawned.  Hopefully the eggs are fertile and hatch soon!
<message edited by Bongo Shrimp on Tuesday, April 9, 2013 10:59 PM>

Bongo Shrimp
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Re:Breeding Journal, Species: Gnathophyllum americanum - Sunday, March 17, 2013 1:19 AM

 


Bongo Shrimp
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Re:Breeding Journal, Species: Gnathophyllum americanum - Tuesday, March 19, 2013 9:11 PM
Well a few hatched last night and I expected to find a million this morning but no such luck. The female still has her eggs so hopefully tonight or tomorrow.  I have a kreisel ready to go and I'm grabbing some rotifers tomorrow.

Bongo Shrimp
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Re:Breeding Journal, Species: Gnathophyllum americanum - Sunday, March 24, 2013 1:46 AM
Just hatched between 11:30pm and 1:00am. They are in a kreisel right now with rotifers although due to their size, if they don't take the rotifers I'm going to try bbs. Pics coming tomorrow including microscope pics!

Bongo Shrimp
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Re:Breeding Journal, Species: Gnathophyllum americanum - Sunday, March 24, 2013 7:39 PM

 

 


Bongo Shrimp
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Re:Breeding Journal, Species: Gnathophyllum americanum - Sunday, March 24, 2013 9:25 PM
They're eating bbs! Pics to come with full bellies and/or larvae holding bbs while they eat them.

Bongo Shrimp
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Re:Breeding Journal, Species: Gnathophyllum americanum - Monday, March 25, 2013 10:54 PM
Found ~20 dead today presumably because they did not start eating soon enough but could also be other causes.
 
Pics:

 


Bongo Shrimp
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Re:Breeding Journal, Species: Gnathophyllum americanum - Wednesday, April 3, 2013 4:59 PM
Not really sure of the reason but most of the larvae have died off.  I have a feeling it might have been a food issue although I know they were eating.  I'll try again with the next round.

Bongo Shrimp
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Re:Breeding Journal, Species: Gnathophyllum americanum - Tuesday, April 9, 2013 10:43 PM
New spawn (this time in my tank):


Bongo Shrimp
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Re:Breeding Journal, Species: Gnathophyllum americanum - Wednesday, April 17, 2013 12:09 AM
Lost the female today.  No idea why since all parameters are fine and she has been eating like a pig. :/

shannpeach
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Re:Breeding Journal, Species: Gnathophyllum americanum - Wednesday, April 17, 2013 8:34 AM
Oh  no! Did you find her body, or is she just missing?  Were you able to sex them through physical characteristics other than carrying eggs so you can look for another female?

Bongo Shrimp
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Re:Breeding Journal, Species: Gnathophyllum americanum - Wednesday, April 17, 2013 10:24 AM
Quote Originally Posted by shannpeach


Oh  no! Did you find her body, or is she just missing?  Were you able to sex them through physical characteristics other than carrying eggs so you can look for another female?

Yeah I found her upside-down.  The female has a significantly larger and more rounded abdomen for holding eggs so I think I might be able to sex one.