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Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Saturday, April 5, 2014 4:57 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: Dascyllus aruanus, Three Stripe Damselfish Social Structure: pair Size of Individuals: about 3.5 inches Age of Individuals: unknown Date added to Tank: 4/5/14 Broodstock Tank Details Size of Tank: 20 gallon high Substrate Details: sand bed, well established Filtration Details: live rock in sump Water Changes: 10 % weekly Water Temperature: 80 F Lighting: ambient, under cabinet fluorescent lights. Lighting Cycle: 14 hours day, 10 hours night Other Tank Inhabitants: none Broodstock Feeding Details Food Types: frozen mash of shrimp, spirulina, krill, fish, scallops, etc. Also frozen fish eggs with algae, Hikari mysis, a little flake . Not all foods fed at each feeding. I switch it up. Feeding Schedule: twice daily Spawning Details Date of First Spawn: 4/8 or 4/9 not sure , Spawn Time of Day:Initially, eggs noticed in the morning of the ninth. Subsequent spawns occur early, just after lights come on. Dates of Consecutive Spawns: 4/13, 4/18, 4/24, every 5-6 days mostly. 8/5 , 8/1/15 Courtship Details: Not sure who is female, who is male. One very aggressive fish, presumed male, hides except for attacking the other one. The other one cowers in the corner. Sometimes she swims down to the aggressive one. Scared one loses color in the facial area, whereas the aggressive one looks normal. Aggressive one tends the eggs, (but not very much) so perhaps it is the male. Subesquent thoughts concur. After a while, these two appear to get along OK for the mos part. Female is not stressed, fins are intact. Egg Size: Ultra tiny: approximately 0.5mm diameter Egg Color: clear to slight yellow Egg Count: about a thousand. Its amazing. Hatch Details Hatch Date: 4/27/14 , and thereafter 2.5 days after spawn. Hatch Time of Day: night # Days after Spawn: 3.5 Larvae Description: 1.5-2mm long, clear, clear eyes, undeveloped mouth Consecutive Hatch Dates: 4/11/14, 4/16, 4/21 , 8/4/15 Larval Tank Details Temperature: 78F Size of Larval Tank: 17 gallon BRT, filled to about 10 gallons Substrate Details: none Other Tank Decor: none Filtration Details: airstone and heater Lighting: compact fluorescent clamp light Lighting Cycle: 14 hours day, 10 hours night Water Changes: none at first Larval Feeding Details Food Types: Initially: rotifers, ciliates, P. crassirostris nauplii, O. marina, live Isochrysis, RGgreen Feeding Schedule: continuous 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 Spawn is a bit loose, meaning the eggs are not tightly next to each other for the most part, but covers about 1/3 of the outside area of a 4 inch diameter clay pot. The pot is covered with eggs on the shadowed side, not on the well lit side. (No Pictures or Videos in the Section Please) Miscellaneous Information: Controlled Breeding and Larval Rearing Techniques of Damsel Fishes G. GOPAKUMAR1*, BOBY IGNATIUS2, I. SANTHOSI1 and N. RAMAMOORTHY1 Asian Fisheries Science 22 (2009): 797-804 http://eprints.cmfri.org.in/5727/1/11.pdf Danilowicz, Bret S. and Brown, Christopher L. 1992. Rearing methods for two damselfish species: Dascyllus albisella and D. aruanus. Aquaculture 106: 141-149 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 KathyL on Wednesday, August 5, 2015 8:42 AM>
check out Kathy's Clowns, llc website: http://kathysclowns.com Captive bred clownfish and more (Wholesale to the trade.)
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Saturday, April 5, 2014 5:01 PM
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Gift from a friend, these are a spawning pair. Let's see what happens. These have almost recovered from the stress of moving them. They temporarily lost color in the head region, but it is coming back as expected.
<message edited by KathyL on Saturday, April 5, 2014 10:18 PM>
check out Kathy's Clowns, llc website: http://kathysclowns.com Captive bred clownfish and more (Wholesale to the trade.)
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Wednesday, April 9, 2014 1:04 PM
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OMG, Three days later we've got about zillion eggs! They spawned!
check out Kathy's Clowns, llc website: http://kathysclowns.com Captive bred clownfish and more (Wholesale to the trade.)
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Wednesday, April 9, 2014 1:49 PM
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Holy moly! That was fast!
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Wednesday, April 9, 2014 6:33 PM
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Here are the eggs: With Papa: Thousands of tiny eggs: One egg under the scope this morning. More eggs this afternoon at about 4:30pm. I scraped them off and put them under the 40x powered dissecting microscope. I am thinking they must be fertile… :-)
check out Kathy's Clowns, llc website: http://kathysclowns.com Captive bred clownfish and more (Wholesale to the trade.)
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Thursday, April 10, 2014 10:57 AM
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That is A LOT of eggs! Are you concerned about the aggressiveness of the (assumed) male? Do you think there would be the same amount of aggressiveness from the mean male if they were in a larger tank?
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Thursday, April 10, 2014 7:19 PM
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I have no idea. Do you?
check out Kathy's Clowns, llc website: http://kathysclowns.com Captive bred clownfish and more (Wholesale to the trade.)
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Thursday, April 10, 2014 8:16 PM
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Nope!
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Thursday, April 10, 2014 8:43 PM
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Unless I put these in the growout sump, I don't have a larger tank available. I could also put them in a sump connected to a broodstock system, but I'm taking down that system, so that's not so great, and in addition, at 3 days, these guys are still in quarantine.
check out Kathy's Clowns, llc website: http://kathysclowns.com Captive bred clownfish and more (Wholesale to the trade.)
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Thursday, April 10, 2014 9:02 PM
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It's entirely possible he would just terrorize her in a larger tank. I have no idea...I've never had any damsels
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Sunday, April 13, 2014 6:03 PM
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Did these hatch yet??
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Monday, April 14, 2014 9:03 AM
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They did hatch, but I did not collect larvae. too busy at the moment, perhaps next time.
check out Kathy's Clowns, llc website: http://kathysclowns.com Captive bred clownfish and more (Wholesale to the trade.)
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Monday, April 14, 2014 9:04 AM
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I am now thinking the aggression was part of the mating ritual. It seems to be toned down now, everyone is eating well, and the two co-exist.
check out Kathy's Clowns, llc website: http://kathysclowns.com Captive bred clownfish and more (Wholesale to the trade.)
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Tuesday, April 22, 2014 12:57 PM
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I have more pics of eggs, but can't post them right now. The cool thing is that I was checking eggs under the scope last night and tthought they were close to hatching but not yet ready. I was wrong. This morning I needed the Petri dish and saw that I had left it on the scope overnight. When I picked it up to wash it I noticed little swimmers in there. They hatched in the Petri dish! The eggs dont need to be attached to hatch. Cool.
check out Kathy's Clowns, llc website: http://kathysclowns.com Captive bred clownfish and more (Wholesale to the trade.)
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Tuesday, April 22, 2014 1:20 PM
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So you could try a scrape-and-tumble approach if needed...awesome Any plans to do anything with them soon? I'm excited for you to try! Are you thinking you will start with rotifers, or will you go right to parvo?
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Wednesday, April 23, 2014 8:18 AM
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They are so tiny at hatch, about a mm in LENGTH! Also, I don't think they have a mouth yet. Or fully developed eyes. I'll keep them with P. crassirostris at first, since that's the smallest copepod nauplii I have. I am setting up a kreisel for them.
check out Kathy's Clowns, llc website: http://kathysclowns.com Captive bred clownfish and more (Wholesale to the trade.)
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Wednesday, April 23, 2014 8:33 AM
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Oh my goodness, yeah, those are tiny! How big is your kreisel? Are you going to just take a portion of the nest then to try? I can't imagine it would be easy to feed 1000 larvae on just parvo!
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Thursday, April 24, 2014 12:55 AM
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It's a 2 gallon kreisel, so 8 liters approximately. I'm going to try for 100 eggs per kreisel, maybe 2 kreisels, so I can test things. I'm guessing 20% of the eggs won't hatch, so I'll end up with 10 larvae per liter. We'll see how it goes. Waiting for eggs….
check out Kathy's Clowns, llc website: http://kathysclowns.com Captive bred clownfish and more (Wholesale to the trade.)
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Saturday, April 26, 2014 10:37 PM
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I am in the process of re-doing the basement, so I did not use the BRT for this nest. The stand for the BRT is too close to the system I am taking down. I did, however, put up the kreisel on the mildly heated shelf. These eggs were laid a couple of days ago, on the OTHER clay pot in the tank. The first pot, I had cleaned off the gravel/sand that the male keeps throwing on it, and I guess they didn't like it. These fish take almost no care of the eggs, and they kick up sand all the time, so there is a layer of eggs interspersed with sand… I tried to rinse off the sand before getting pictures of the 4 inch pot. The nest is so large that I can't get it all in the picture, as it wraps around the pot. When I look at the eggs under the scope, the eyes are not black, but when I've waited in the past for that to happen, the eggs hatch before I can capture any. So I am thinking that Tonight is the night. I put the scraped off eggs directly in the kreisel, in the hopes that they will just hatch there and continue developing uninterrupted. Eggs that scraped off as singles, are somewhat neutrally buoyant and are circling the kreisel. Eggs that came off attached to other eggs have sunk, but still I think they will be OK. We shall see.
check out Kathy's Clowns, llc website: http://kathysclowns.com Captive bred clownfish and more (Wholesale to the trade.)
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Re: Breeding Journal, Species: Dascyllus aruanus, Three Stripe Damselfish
Saturday, April 26, 2014 10:53 PM
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Morning #2 evening #2
check out Kathy's Clowns, llc website: http://kathysclowns.com Captive bred clownfish and more (Wholesale to the trade.)
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