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: Elacatinus oceanops (neon gobby)
Social Structure: single pair
Size of Individuals: 2" - 2 1/4"
Age of Individuals: unsure
Date added to Tank: September 2010
Broodstock Tank Details Size of Tank: 20 gallon long
Substrate Details: bare bottom
Filtration Details: flow-through (sump with skimmer, micron sock, UV)
Water Changes: Weekly 10%
Water Temperature: 80-82
Lighting: T5
Lighting Cycle: 14 hrs on/ 10 hrs off
Other Tank Inhabitants: a pair of assessors and a clownfish
Broodstock Feeding Details Food Types: frozen mysis & homemade 'mush' and otihime pellets
Feeding Schedule: at least 2 x day
Spawning Details Date of First Spawn: 1-13?; I found them on 1-17-2011 and they already developed the black eye spots
Spawn Time of Day: Unsure
Dates of Consecutive Spawns: 1-20-2011, 1-28, (they spawn the day after I remove their previous nest)
Courtship Details: always together; sometimes rub up against one another
Egg Size: tiny - much smaller than percula eggs (2mm per literature)
Egg Color: transparent at first and then black eye spot develops several days later
Egg Count: 100+
Hatch Details Hatch Date: 1-19 & 1-20, 1-27
Hatch Time of Day: evening of the 6-7th day. As I place them into the hatching tank, they begin to hatch! Maybe the bright light and movement of the water stimulates them?
# Days after Spawn: 6 - 7
Larvae Description: very small and difficult to see in the green water; they swim with peculiar jerking movements.
Larval Tank Details Temperature: 79-80
Size of Larval Tank: 20 gallon high
Substrate Details: bare bottom
Other Tank Decor: sponge filter
Filtration Details: sponge filter
Lighting: normal output floresent about 14" from top of water
Lighting Cycle: 14 hrs on, 10 hrs off
Water Changes: slowly vacuum bottom every 3-4 day
Larval Feeding Details Food Types: rotifers and copepods
Feeding Schedule: constant
Metamorphosis/Settlement Date of Settlement Start: 2-11-11
Days after Hatch: 22 days
Date of Settlement End: 2-20-11 (5-8 days all settled)
Description of Fry: Identicle to adults but still very small. They swim/jerk around less.
Grow-Out Tank Details Temperature: 78-80 f
Size of Grow-Out Tank: 40 gallon breeder
Substrate Details: bare bottom for easier scraping/cleaning
Other Tank Decor: sometimes macro algae
Filtration Details: flow through system part of my 380 gallon growout; sump, skimmer, UV and micron sock sometimes
Lighting: T5
Lighting Cycle: 14 hrs on/10 hrs off
Water Changes: weekly scraping/vacuuming; around 5-8%
Size at Transfer: 1" or after settlement
Age at Transfer: 30-45 days post hatch
Grow-Out Feeding Details Food Types: otihime, new life spectrum pellets, thawed mysis & homemade mush
Feeding Schedule: at least 3 times per day
Additional Information Miscellaneous Information(NO PHOTOS OR VIDEO): 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.
<message edited by woodstock on Wednesday, July 13, 2011 7:32 AM>