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Breeding Journal, Species: Pomacentrus alleni
Friday, August 20, 2010 9:23 AM
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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: Poacentrus alleni Social Structure: single pair Size of Individuals: 3" Age of Individuals: unsure Date added to Tank: After QT on 7-25-2009 added a harem of 4 to the reef tank; October 25, 2009 placed 3 into a 20 gallon breeder tank (they spawned 1 week later) Broodstock Tank Details Size of Tank: 20 gallon Substrate Details: barebottom Filtration Details: flow through, sump, micron sock, skimmer Water Changes: weekly 25% Water Temperature: 80-82 Lighting: T5 Lighting Cycle: 14 hrs on, 10 hrs off Other Tank Inhabitants: none Broodstock Feeding Details Food Types: pellet, mysis, homemade mush Feeding Schedule: twice daily Spawning Details Date of First Spawn: 11-1-2009 Spawn Time of Day: unknown Dates of Consecutive Spawns: unsure; they always have an egg mass and appear to spawn every few days Courtship Details: male cares and protects the eggs; also keeps female away unless she is spawning Egg Size: much smaller than percula eggs Egg Color: transparent Egg Count: hundreds Hatch Details Hatch Date: unsure Hatch Time of Day: during the night # Days after Spawn: unsure since they always have an egg mass but I believe they hatch in 3-5 days Larvae Description: extremely small and fragile/ will NOT survive on rotifers Larval Tank Details Temperature: 80 Size of Larval Tank: 20 gallon Substrate Details: bare bottom Other Tank Decor: none Filtration Details: sponge filter or HOB filter Lighting: normal output florescent Lighting Cycle: 24 hrs for first week Water Changes: 20% water change while vacuuming bottom every other day Larval Feeding Details Food Types: will NOT survive on rotifers (currently searching for appropriate food to colonize) Feeding Schedule: constant live food 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: Extremely difficult fry. None reared in captivity to my knowledge. You will be required to provide photographic 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.
<message edited by woodstock on Saturday, September 25, 2010 1:54 PM>
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Re:Breeding Journal, Species: <Pomacentrus alleni>
Friday, August 20, 2010 9:27 AM
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Re:Breeding Journal, Species: <Pomacentrus alleni>
Friday, August 20, 2010 11:44 AM
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AWESOME Doni! How lucky to get them spawning on the glass too!
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Re:Breeding Journal, Species: <Pomacentrus alleni>
Friday, August 20, 2010 12:24 PM
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Thanks. I'm glad I took some photos then. Now they are in a different tank and spawn on white ceramic tiles which makes it almost impossible to see the eggs. I am very anxious to attempt to raise these but am waiting to find a better/smaller food source than rotifers. I really need to get a good microscope so I can accurately measure rotifers and other zooplankton.
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Re:Breeding Journal, Species: <Pomacentrus alleni>
Friday, September 24, 2010 9:54 PM
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Doni, I'm still trying to wrap my head around how these guys are spawning and looking for some more specific information in the initial post if you can provide it. There seems to be more info in the reports that isn't mirrored in the journal thread. Also, do you perhaps have any other journals or forum posts somewhere where you've been keeping more information? Let me see if I'm understanding correctly. You have a single pair you added in November of 2009. You also state the started spawning in November of 2009. How did you get the pair? Were they a spawning pair when you got them? Did the start spawning the very same day you added them to the tank? Or was there days or weeks before they started spawning? Based on the report data provided, it sounds like they spawned the same day you added them? Obviously you're spawning them, that's not what I'm questioning..I'm trying to figure out how long it took to really get the spawning pair. If it was truly the same day, great, but it seems atypical, thus my pressing for more details It's obviously important that we try to pin down more details if possible. It sounds like the spawning is "constant" even with only the single pair, but some of the other info suggests maybe they're spawning every 3-5 days? Your hatch report suggests they hatch in roughly 36-48 hours - would that be an accurate assessment?
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Re:Breeding Journal, Species: <Pomacentrus alleni>
Saturday, September 25, 2010 6:10 AM
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Matt you remind me of my 10th grade Social Studies teacher! LOL Anoying but totally warranted Thanks! I do apologize for the vagueness but journaling is one thing I have not found time to do. I rely totally on memory and photos to piece timelines together. I will do my best to fill in details where my responses are weak.
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Re:Breeding Journal, Species: <Pomacentrus alleni>
Wednesday, November 3, 2010 6:07 AM
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Figures that they would take a break from spawning when I'm ready to try to raise a batch...
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Re:Breeding Journal, Species: <Pomacentrus alleni>
Wednesday, November 3, 2010 8:45 AM
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Any other fish take a break recently? It seems that fall does that...my Onyx stopped spawning, Jay's Maroons went on hiatus...
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Re:Breeding Journal, Species: <Pomacentrus alleni>
Wednesday, November 3, 2010 9:36 AM
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I've certainly noticed a decrease in pre-spawning behavior in my 'bonded' pairs and my black & white's have not spawned again (that I have noticed) in over 5 weeks. The fish room's ambient temp has been low (72-75) over the last month which has effected the water's temp. I have since ramped up the heat so hopefully they'll get jiggy again.
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Re:Breeding Journal, Species: <Pomacentrus alleni>
Wednesday, November 17, 2010 6:13 AM
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Newly hatched fry: I'll get better photos. These were taken this morning as I was rushing to get ready for work. Their hatching tank is full of O. marina, A. panamensis, and small rotifers. It is also tinted green with algae paste. (disregard the date shown on the photo)
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Re:Breeding Journal, Species: <Pomacentrus alleni>
Thursday, November 18, 2010 7:05 AM
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Good luck Doni!
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Re:Breeding Journal, Species: <Pomacentrus alleni>
Thursday, November 18, 2010 11:12 AM
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Nice pics Doni!
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Re:Breeding Journal, Species: <Pomacentrus alleni>
Thursday, November 18, 2010 1:17 PM
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Thanks guys! The difficult thing about having a large volume of water is trying to find the tiny fry in 20 gallons of greenwater!
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Re:Breeding Journal, Species: <Pomacentrus alleni>
Thursday, November 18, 2010 6:34 PM
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No doubt. Good luck with them!
--Andy, the bucket man. "Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886
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