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Re:video clips from several batches of developing larvae
Wednesday, March 4, 2015 8:10 AM
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Well your results are the proof, from here on I think its just tweaking your protocol. I have seen a lot more turbulence snorkeling in the Philippines, the advantage to the turbulence is food is kept in the water column. I wouldn't have used that much, but I think its safer to err on the more then the less. Time will tell. I love your light and camera set up, I am tech challenged, and this is so superior to anything I have seen its something we should all emulate. Recording the hatch and development so well is a huge blessing to more knowledge of the species.
Jake We are all in this together
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Re:video clips from several batches of developing larvae
Wednesday, March 4, 2015 8:17 AM
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Very nice (& creative with the lockline) camera setup. I have a simple Kodak Playsport video camera that I have often thought of dropping in my tank for fun. I think later today I'll see what the reef tank looks like from the perspective of my fish!
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Re:video clips from several batches of developing larvae
Wednesday, March 4, 2015 11:24 PM
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Fantastic job...so I take it you're leveraging the earlier Rising Tide successes back up there now?! SWEET. Really gives me hope. I presume for algae you're doing live, and probably T-Iso?
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Re:video clips from several batches of developing larvae
Thursday, March 5, 2015 7:11 AM
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Well I didn't have to leverage. While we were sending eggs down to TAL. I was attempting to raise the larvae in house. When they raised the first batch of angelfish from us. I was successful raising our first batch of angelfish in plastic pretzel jars. Since then we have actual systems to attempt rearing larvae. We have also participated in another project call IMLS 21st Century Museum Professionals fish rearing project with Roger Williams University, Institute of Museum and Library Services and New England Aquarium. We are still sending eggs down to Florida. I am using live nannochloropsis and isocrysis to add turbidity to the larval tanks as well as feed my live foods(parvo. copepods and rotifers). When I need to I will use concentrated nanno from reeds mariculture as a substitute to adding turbidity to the larval tanks. I prefer to use the live cultured algae but it is a good substitute when needed.
<message edited by hystrix on Thursday, March 5, 2015 10:01 AM>
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Re:video clips from several batches of developing larvae
Thursday, March 5, 2015 9:07 AM
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Can you describe what kind of egg collection system are you using? For quite a while I have been trying unsuccessfully to collect eggs from my coral beauty pair. They are in a mixed reef display tank. I haven't yet come up with good system short of completely rebuilding the overflow to be redirected to some device that will allow the eggs to accumulate.
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Re:video clips from several batches of developing larvae
Thursday, March 5, 2015 10:11 AM
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I will have to take some pictures but a simple egg collector for broadcast spawners is a basic air lift collector. You can make whatever size fits your needs/tank You have a collection container (plastic critter keeper, bucket, tote, etc.) that has sections cut out of the sides. You then glue (hot glue, super glue, silicone) micron screen to allow water to flow in and out of the container (the screen is really there to allow water to flow out and trap the eggs in the container). We use 250 mic and 400 mic screen to collect eggs. The bottom of your container will have a bulkhead in which you will have pipe inside the container and pipe running on the outside of the container to just under the surface of the water. Stick an airline down to the bottom of the inside pipe and adjust the air flow to get a nice consistent pull of water from the outside pipe. The air lift skims the water surface, pulling in the floating eggs.
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Re:video clips from several batches of developing larvae
Thursday, March 12, 2015 3:13 PM
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I'm interested in the pretzel jar raising of angels. Please tell us more!
check out Kathy's Clowns, llc website: http://kathysclowns.com Captive bred clownfish and more (Wholesale to the trade.)
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Re:video clips from several batches of developing larvae
Thursday, March 12, 2015 5:27 PM
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Hi Kathy, here is a quick rundown of how we were able to raise angels pretzel jars. FYI this happened in 2012 and 2013 a few ml of eggs were placed in the jars they hatched out the next day. at this time live nanno was added to make them hazy. dead eggs were siphoned off the bottom with rigid air line attached to flexible line. parvo. pods were added the next day. on a daily basis the jars would be checked. greened up with algae if needed and fed pods if need. This was all done by personal observation and what I thought was needed. co-workers covered my days off. every other day/as needed the bottom of the jars would be siphoned. (approx. 1-2liters) We raised up a few dozen with this method of keeping things basic. Keep it simple stupid method. It was by no means ideal but it worked to an extent. The pics are labeled https://www.dropbox.com/s...66lp7uxFWznO3S8da?dl=0
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Re:video clips from several batches of developing larvae
Thursday, March 12, 2015 10:00 PM
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THAT IS AMAZING! People with 100 gallon tubs, failing to raise angels, will be so mad when they see this. Thanks so much for sharing! You should write an article for a magazine or something.
check out Kathy's Clowns, llc website: http://kathysclowns.com Captive bred clownfish and more (Wholesale to the trade.)
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Re:video clips from several batches of developing larvae
Friday, March 13, 2015 8:30 AM
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I love it! Large volumes have always been touted for stability of conditions, but I've had my best successes using 2 gallon kriesels. With a little bit of attention the conditions can be maintained fairly easily. Excellent work, and I agree with Kathy, there is a nice article in this!
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Re:video clips from several batches of developing larvae
Tuesday, March 17, 2015 9:54 AM
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Originally Posted by hystrix
I will have to take some pictures but a simple egg collector for broadcast spawners is a basic air lift collector. You can make whatever size fits your needs/tank You have a collection container (plastic critter keeper, bucket, tote, etc.) that has sections cut out of the sides. You then glue (hot glue, super glue, silicone) micron screen to allow water to flow in and out of the container (the screen is really there to allow water to flow out and trap the eggs in the container). We use 250 mic and 400 mic screen to collect eggs. The bottom of your container will have a bulkhead in which you will have pipe inside the container and pipe running on the outside of the container to just under the surface of the water. Stick an airline down to the bottom of the inside pipe and adjust the air flow to get a nice consistent pull of water from the outside pipe. The air lift skims the water surface, pulling in the floating eggs. Reading this I am picturing an overflow return box, with an addition to the front that has the screen to the overflow box , with the eggs remaining in the addition. Its worth trying to make up a couple. Thanks. Comments welcome.
Jake We are all in this together
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Re:video clips from several batches of developing larvae
Wednesday, March 18, 2015 6:47 PM
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Any updates? Curious to see how long they take to settle.
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Re:video clips from several batches of developing larvae
Wednesday, March 18, 2015 7:23 PM
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Originally Posted by hystrix
Well I didn't have to leverage. While we were sending eggs down to TAL. I was attempting to raise the larvae in house. When they raised the first batch of angelfish from us. I was successful raising our first batch of angelfish in plastic pretzel jars. Since then we have actual systems to attempt rearing larvae. We have also participated in another project call IMLS 21st Century Museum Professionals fish rearing project with Roger Williams University, Institute of Museum and Library Services and New England Aquarium. We are still sending eggs down to Florida. I am using live nannochloropsis and isocrysis to add turbidity to the larval tanks as well as feed my live foods(parvo. copepods and rotifers). When I need to I will use concentrated nanno from reed mariculture as a substitute to adding turbidity to the larval tanks. I prefer to use the live cultured algae but it is a good substitute when needed. Caught the presentation last year at RAW. I mentioned it to numerous people at the MBI Conference last year. I asked a few questions in the Q&A afterwords and the answers were nothing less then awesome. not a direct quote, but the general gist is there... Q: At what density did you.. blah blah blah A: Pretty dense, don't really know After having logging and counting pounded into me for over a decade, that was a refreshing answer Gresham Hendee Reed Mariculture
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Re:video clips from several batches of developing larvae
Friday, March 20, 2015 9:05 PM
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small version made from a plastic critter keeper, minus the outside pvc that goes just under the water surface
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Re:video clips from several batches of developing larvae
Friday, March 20, 2015 9:07 PM
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inside lift tube, minus the air line bubbling to pull the water and eggs into container.
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Re:video clips from several batches of developing larvae
Friday, March 20, 2015 9:08 PM
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larger rubbermaid tote version
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Re:video clips from several batches of developing larvae
Saturday, March 21, 2015 6:46 AM
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Originally Posted by hystrix
inside lift tube, minus the air line bubbling to pull the water and eggs into container. Thanks, simpler then I'd thought, I really like it.
Jake We are all in this together
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Re:video clips from several batches of developing larvae
Saturday, March 21, 2015 10:51 AM
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Appreciate those pics. I think I can fashion a small version that will work in my 125g.
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