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Breeding Journal, Species: Gobiodon citrinus
Saturday, July 23, 2011 7:18 PM
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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: Gobiodon citrinus (citron goby) Social Structure: single pair Size of Individuals: @ 2.0 inches Age of Individuals: Unsure Date added to Tank: 5-8-2011 Broodstock Tank Details Size of Tank: 65 gallon Substrate Details: Deep sand bed Filtration Details: sump, skimmer, UV Water Changes: 10% monthly Water Temperature: 78-80 Lighting: T5 HO Lighting Cycle: 14/10 Other Tank Inhabitants: two spot gobies, snails, hermit crabs Broodstock Feeding Details Food Types: thawed mysis, homemade mush, New Life Spectrum pellets Feeding Schedule: 2-5 x per day Spawning Details Date of First Spawn: Noticed the eggs on 7-23-2011 Spawn Time of Day: between noon - 3pm Dates of Consecutive Spawns: They spawn every 5 days Courtship Details: Male dances/quivers in front of female Egg Size: < 1 mm (very tiny - much smaller than percula eggs) Egg Color: white/clear Egg Count: several hundred Hatch Details Hatch Date: 7-28-11 Hatch Time of Day: Within the first few hours of lights out # Days after Spawn: 4-5 Larvae Description: close to invisible - very tiny and clear Larval Tank Details Temperature: 80-82 Size of Larval Tank: 20 gallon Substrate Details: bare bottom Other Tank Decor: none Filtration Details: airstone Lighting: normal florescent Lighting Cycle: 24 hrs Water Changes: 10% every few days Larval Feeding Details Food Types: live rotifers & copepods within the culture 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 (No Pictures or Videos in the Section Please) Miscellaneous Information: The fry are difficult to collect even with a larva snatcher. They dart away VERY quickly to any movement. 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 Thursday, August 18, 2011 5:25 AM>
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Re: Breeding Journal, Species: Gobiodon citrinus
Saturday, July 23, 2011 7:37 PM
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They were kind enough to spawn on the glass so I could see
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Re: Breeding Journal, Species: Gobiodon citrinus
Saturday, July 23, 2011 8:30 PM
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Very nice pic!
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Re: Breeding Journal, Species: Gobiodon citrinus
Saturday, July 23, 2011 8:39 PM
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Originally Posted by bookfish
Very nice pic! Witt is sitting here with me and we both said the same thing.
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Re: Breeding Journal, Species: Gobiodon citrinus
Monday, July 25, 2011 11:01 AM
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Good luck, Doni, If you have success, please let me know. I would like to get some captive bred ones.
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Re: Breeding Journal, Species: Gobiodon citrinus
Monday, July 25, 2011 2:11 PM
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Wow, great stuff! Will follow this one with great interest.
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Re: Breeding Journal, Species: Gobiodon citrinus
Tuesday, July 26, 2011 6:12 AM
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Thanks everyone! I am excited about this too. It is refreshing how a new spawning like this rejuvenates my excitement! Does anyone know how many days before they hatch?
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Re: Breeding Journal, Species: Gobiodon citrinus
Wednesday, July 27, 2011 10:22 AM
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Doni, I'm just gonna guess and say it's probably 4-6 days to hatch.
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Re: Breeding Journal, Species: Gobiodon citrinus
Wednesday, July 27, 2011 10:36 AM
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Originally Posted by mPedersen
Doni, I'm just gonna guess and say it's probably 4-6 days to hatch. Thank you Matt. I have been setting up the Vossen larva trap nightly just to be sure but they have not hatched yet. Maybe tonight!
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Re: Breeding Journal, Species: Gobiodon citrinus
Wednesday, July 27, 2011 6:29 PM
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Another spawn occurred today while I was at work (6am-6pm) even though the previous spawn has not hatched. I have the larva snagger set up and ready to snag. Hopefully, I'll have some fry in the morning! Here is a photo of the male tending the two nests. It is difficult to see in the photo, but the older eggs have silver eyes and the new spawn appears white/clear.
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Re: Breeding Journal, Species: Gobiodon citrinus
Friday, July 29, 2011 8:40 AM
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The 1st set of eggs hatched sometime during the 5th night. I THINK I captured fry but they are soooo tiny and clear.. close to invisible. I'll continue to capture the fry as they hatch (every 5 days)... I was in a hurry to get to work so I did not have time to get some photos of the fry. I'll try the next time.
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Re: Breeding Journal, Species: Gobiodon citrinus
Friday, July 29, 2011 9:49 AM
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That's cool Can't wait to see the pics!
RLTW 180 Gallon Mixed Reef Then I heard the voice of the Lord saying, "Whom shall I send? And who will go for us?" And I said, "Here am I. Send me!" Isaiah 6:8
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Re: Breeding Journal, Species: Gobiodon citrinus
Friday, July 29, 2011 10:10 AM
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Also very interested! So exciting!
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Re: Breeding Journal, Species: Gobiodon citrinus
Monday, August 1, 2011 1:57 PM
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I missed the hatch. Apparently the eggs hatch during the 4th night after a spawn, not the 5th. I'll be ready next time. I can't see any fry in the 20 gallons of 'green soup' nursery tank but hopefully they're are some doing okay. It is filled with rotifers and some copepods. Hopefully, they're eating okay.
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Re: Breeding Journal, Species: Gobiodon citrinus
Wednesday, August 10, 2011 8:55 AM
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I managed to catch them in the act of spawning and also got a video of the almost invisible fry right after hatching! The fry are VERY fast and are sensitive to the slightest movement... They can easily evade a cup or baster when I attempt to catch them. I know now why the larva catcher doesn't work so well with them... they fry can easily dart away due to any movement/bubbles. At each spawn, I managed to scoop out some of the evasive fry so I know I have some in the 'nursery' tank filled with rotifers and copepods. I've read that they grow SLOW but hopefully, they are alive and growing well. The 20 gallon 'nursery' looks like pea soup (IA & rotifers) so I can't see anything in it...
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Re: Breeding Journal, Species: Gobiodon citrinus
Wednesday, August 10, 2011 10:42 AM
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Fry just after hatching: CLICK to watch video
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Re: Breeding Journal, Species: Gobiodon citrinus
Wednesday, August 10, 2011 10:48 AM
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Spawning video.
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Re: Breeding Journal, Species: Gobiodon citrinus
Thursday, August 11, 2011 5:19 AM
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Very cool! Looks like a nice tank as well. What kind of plants are those?
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Re: Breeding Journal, Species: Gobiodon citrinus
Thursday, August 11, 2011 6:52 AM
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Thanks Kathy. The green is Caulerpa prolifera and the red is Halymenia durvillaea.
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Re: Breeding Journal, Species: Gobiodon citrinus
Tuesday, August 23, 2011 11:55 PM
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The vids are a great touch Doni! Keep up the great work!
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