Breeding Journal, Species: Crested Oyster Goby (Cryptocentroides gobioides)

General
Species:  Cryptocentroides gobioides
Social Structure:  4 males, 10 females
Size of Individuals:  1.75"-4.25"
Age of Individuals:  Unknown
Date added to Tank:  June 2012

Broodstock Tank Details
Size of Tank:  75gal 48.5" x 18.5" x 21.2"
Substrate Details:  bare bottom littered with PVC "caves"
Filtration Details: wet/dry, fluidized sand bed, I-tech skimmer
Water Changes:  10% weekly
Water Temperature: 79-80
Lighting:  overhead fluorescent 
Lighting Cycle:  on for 13hrs
Other Tank Inhabitants:  none

Broodstock Feeding Details
Food Types:  Rods Food FO blend, formula 1 & 2 pellets, PE mysis, cyclop-eeze wafer
Feeding Schedule:  every 4hrs 

Spawning Details
Date of First Spawn:  9-18-12
Spawn Time of Day:  mid morning, around 11am
Dates of Consecutive Spawns:  every 12-14 days
Courtship Details:  male lures female into pvc cave
Egg Size:  approx 1mm
Egg Color:  opaque
Egg Count:  approx 500

Hatch Details
Hatch Date:  9-23-12 
Hatch Time of Day:  evening
# Days after Spawn:  5
Larvae Description:    silver with eyes and mouth, approx. 3.5mm in length
Consecutive Hatch Dates:  since first spawn, spawns have been uninterrupted and occur every 10-12 days


Larval Tank Details
Temperature:  80
Size of Larval Tank: 25gal round tub 
Substrate Details:  bare bottom
Other Tank Decor:  none
Filtration Details:  none
Lighting:  overhead fluorescents
Lighting Cycle:  24hr lighting
Water Changes:  none till day 5

Larval Feeding Details
Food Types:  rotifers
Feeding Schedule:  add rotifers as needed, green water as needed with RotiGreen Omega 

Metamorphosis/Settlement
Date of Settlement Start:  Oct. 5, 2012 
Days after Hatch:  12
Date of Settlement End:  Oct. 7, 2012 
Description of Fry:  miniature versions of adults, but more drab in color 

Grow-Out Tank Details
Temperature:  80 F
Size of Grow-Out Tank:  40gal breeder 36.2" x 18.3" x 17"
Substrate Details:  bare bottom 
Other Tank Decor:  plenty of pvc parts for shelter
Filtration Details:  Plumbed into system filtered with 25um sock, wet/dry, skimmer, fluidized sand bed and UV 
Lighting:  overhead fluorescent
Lighting Cycle:  8am-10pm 
Water Changes:  10% weekly 
Size at Transfer:  1"
Age at Transfer:  30dph

Grow-Out Feeding Details
Food Types:  otohime B2,C1, S2, NLS Grow, crushed HUFA flake  
Feeding Schedule:  every 4 hours  

Additional Information

(No Pictures or Videos in the Section Please)
Miscellaneous Information: 



You will be required to provide photographic or video 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. PHOTOS AND VIDEO S MUST BE PLACED IN ADDITIONAL POSTS, NEVER IN THE FIRST POST IN A JOURNAL.

Jonathan Foster

FishEye Aquaculture

Male tending eggs
 

1dph
 

2dph
 

7dph
 

12dph
 

Settlement 14dph
 

18dph
 

95dph

Jonathan Foster

FishEye Aquaculture

I would like to note that I did pull the first batch of eggs early in the afternoon before I assumed they would hatch, I did not know what time they would hatch.  Previous goby species for me had always hatched around 3pm.  So I pulled the spawning cave and knowing that artificial incubation can have issues with fungus, bacteria, etc., I gave a formalin bath (1.5ml/1L) for 10min, and placed in a 25gal round tub with "sterile", aged, fresh saltwater.  The spawning cave was fixed in a vertical position with aeration placed underneath.  The eggs hatched shortly after lights out.

Jonathan Foster

FishEye Aquaculture