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General
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| Name: |
Dale Pritchard ( Duck ) Site: Marine Breeding Initiative (MBI) |
| Status: |
Approved |
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Species: |
Amblygobius phalaena
( Class:
C
, Points Awarded:
45
) 
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| Journal Thread: |
http://www.mbisite.org/Forums/tm.aspx?m=51369
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| Spawn Date: |
03/22/2011 |
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Time of Spawn: |
not known date is approximate as I was not expecting it.
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Tank Parameters
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Temperature: |
78
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PH: |
8-8.2
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Salinity: |
1.020
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Size:
( Gallons) |
25 gallon
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Dimensions: |
400mm X
500mm X
500mm
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Lighting:
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indirect only
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Lighting Shedule:
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14 on
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Filtration:
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Centralsied sump filter. Bio balls, foam some live rock, skimmer.
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Brood Stock Data
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Size of Female: |
2.5"
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Size of Male: |
5"
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Age of Female: |
Added to tank march 2011
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Age of Male: |
Added to tank oct/Nov 2009
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Time Together:
(how long have you had the pair before this event)
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3 weeks
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Spawn Details
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Pre-Spawn Behavior: |
Male gets aggressive chasing female. He also alters his colouring from very dark to almost white. He will hover above a chosen spawning pipe and then enter it, moving in and out with just half his body to entice the female to enter.
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Spawning Behavior:
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Spawning takes place in pipe.
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Post Spawn Behavior:
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Male very aggressive to female. Female will hide for the duration of egg gestation. Once they have hatched female is allowed to swim freely again
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Egg Details
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Size: |
1mm
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Color: |
whiteish
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Quantity: |
150
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Description:
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Whiteish to clear in colour, very similar to red head eggs.
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Location:
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Attached to roof inside 3" pipe.
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Other Details:
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My current female lays a different egg mass to the previous one. The previous female would be much fatter when gravid and lay a carpet of eggs in a large gelatinous mass only loosely attached to an object. She also prefered to lay out in the open not in a pipe, even though there were pipes available to spawn in.
My current female lays eggs without a gelatinous mass, but are individually attached insde the pipe.
The male doesn't seem to be concerned by this, although he is much more aggressive with this female than the last when brooding eggs.
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