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Re:Breeding Journal, Species: <Elacatinus Oceanops>
Saturday, October 13, 2012 6:23 PM
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Matt: Apocyclops is the one on the right: http://www.ummfish.com/6line_egg_02_2010-7-9.jpg Sorry, but I love that photo. It's a copepod that's native to the Caribbean so I doubt you'll see it in the UK any time soon, unfortunately. And it would probably be fairly invasive so it would likely be a bad idea to send you any. It's really pretty darn easy to culture. Unfortunately the naups are also probably just a little too large for really small fish larvae. It works great for bigger larvae, though. There should be one that's similar in the waters around Great Britain. Can you make it to the coast for any collecting?
--Andy, the bucket man. "Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886
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Re:Breeding Journal, Species: <Elacatinus Oceanops>
Saturday, October 13, 2012 6:36 PM
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excellent, the uk is really missing out on these sort of feeds, i havent tried collecting, but live very close to the see so proably should, im getting rots into mine, but would like a good second food for them any links on how to tow etc for wild feeds?
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Re:Breeding Journal, Species: <Elacatinus Oceanops>
Monday, October 15, 2012 7:35 PM
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As I approach Day 21, I am wondering ... Do larvae need to sleep? I've kept a bright light on my gobies 24/7, since I seemed to lose larvae in previous hatches overnight. These constantly awake larvae are alive, but don't seem to be growing. Matt1001 has reached metamorphosis at Day 23, but my babies don't seem nearly large enough. That could be because I've not fed them NHBS, but rather copepods instead, or it could be because I've not let them sleep. I know how much I need sleep, but do fish larvae? These little guys are constantly darting at rotifers and other foods. Constantly. Don't they ever get tired? I've been feeding the tank with RGcomplete. I think it works fine, as long as the tank has a surface overflow to a sump. I am filtering the overflowate through a 100 micron filter, and then a 53 micron, and the water is still just thick with rotifers and A. panamensis. The sump also has a sponge filter to help with ammonia control. I've got a UV hooked up, but the bulb appears to be burned out, so meh, that's useless. The return is just a trickle, and the larvae seem to have no interest in the overflow, yet it is finely screened to prevent loss there.
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: <Elacatinus Oceanops>
Tuesday, October 16, 2012 2:44 AM
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Interesting I was lighting 24hrs but I think that keeps them feeding constantly, which could be a good thing = more food. Or a bad thing = more energy expelled, so I introduced a 6hr light off period I don't think I really got a decent amount of nhbs into mine as I've had issues with consistent hatching. Are you able to get a pic that shows the density of you Rotifers?
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Re:Breeding Journal, Species: <Elacatinus Oceanops>
Tuesday, October 16, 2012 2:26 PM
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Matt: I've never towed--being 2,000 miles from the ocean, sigh--but the idea is simple. Tow the net behind a boat or find someplace on the coast where you can get a net into the water while the tide is heading in or out. Kathy: Is it time to switch to larger foods? Although you do have copepods in with them. Hmm. No ideas. Sorry. I hope they keep going.
--Andy, the bucket man. "Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886
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Re:Breeding Journal, Species: <Elacatinus Oceanops>
Thursday, October 18, 2012 3:43 AM
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In the October 11 post, i said that the female of the spawning pair died right after spawning the last nest. This evening, as I was feeding the brood stock, I happened to notice a neon gobie in the sump two levels down from the neon gobie papa. So i misspoke. I never found a body. The female disappeared, but did not die. She must have jumped, landed on the tank cover of the tank below, and then wriggled to the edge and over to splash into the sump below that. If I can catch her, I'll return her to her mate. She's been in there for 3 weeks, with no additional food, other than what grows there. The overflows going to that sump are filtered through a 100 micron bag. Really sweet. I didn't lose her after all.
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: <Elacatinus Oceanops>
Thursday, October 18, 2012 6:00 AM
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That's great news
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Re:Breeding Journal, Species: <Elacatinus Oceanops>
Thursday, October 18, 2012 6:34 PM
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I'm glad you found her before she starved, Kathy. I found a clown the other day in a similar situation. I'm fattening him up again now.
--Andy, the bucket man. "Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886
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Re:Breeding Journal, Species: <Elacatinus Oceanops>
Friday, October 19, 2012 12:25 AM
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This morning as i was checking the gobies, I noticed that the water had not cleared of green algae. It's a sure sign that the rotifers are in trouble. Usually quite thick in this larval tank, there were quite a few dead roti bodies and junk in the water, Lots of A. panamensis, and fewer living rotifers than previously. I did a 5 gallon water change, trickling it in, as the gobies don't seem to like water changes. The gobies continue to strike at food constantly, and seem OK. They should be living on the panamensis now anyway. Their bodies are becoming less translucent, more opaque, and I keep imagining them getting some blue, which really isn't true, but I remember the last time I raised gobies, I imagined metamorphosis long before it happened. With the light on all the time, there is some green algae growing on the sides of the tank. I think that's OK, because it must provide some food for the rots and the cyclopoids. I'm using less RGcomplete, particularly since the rotifers appear to have declined. I wonder if the overpopulation of panamensis might have contributed to the decline of the rotifers. In my rotifer culture bucket, the rots and panamensis seem to thrive together quite nicely for a long while, and then the rotifers eventually suffer. Of course the rots may have declined because they over populated the larval tank. I have maybe 8 larval gobies in 15 gallons of water, and the gobies could never keep the population down by themselves. I filtered the overflow water thru a plankton filter, and removed tons of rotifers twice every day, but even that was not enough.
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: <Elacatinus Oceanops>
Friday, October 19, 2012 12:28 AM
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Thing is, that mama gobie was quite fat when she decided to travel, and now looks none the worse for wear.
<message edited by KathyL on Wednesday, December 26, 2012 11:12 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: <Elacatinus Oceanops>
Friday, October 19, 2012 7:58 AM
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I like your description of imagining meta, I've been getting that for a long time, but they seemed to die after turning slightly blue, so I wasn't sure if it was a positive thing or a sign they were on there way out
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Re:Breeding Journal, Species: <Elacatinus Oceanops>
Thursday, November 1, 2012 8:21 AM
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Vision is essential to this job. I got new eyeglasses. Looked into the laval BRT where my one survivor is. Saw lots and lots of little 3 spot swimmers in there. I took some out to look under the microscope--medusae! I have hydroids. They did not come in on brine shrimp cysts, because I didn't use any. Might have been from the A. panamensis or the rotundiformis. If so, I am in deep trouble since I've been feeding rotifers and copepods to everything, including brood stock. Hydroids are the most likely explanation for why 7 of my larvae died the one night I turned the lights out. Stung to death, because they couldn't avoid the medusa or hydroids nematocysts. If anyone has an idea how to get rid of these things please inform! Do berghia eat 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: <Elacatinus Oceanops>
Tuesday, December 25, 2012 12:15 AM
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I despaired of getting mama goby out of the sump full of live rock, and other paraphernalia. Decided to train the mama goby to swim close to the net. I installed the net in the tank a few weeks ago, and left it there. Then I fed the mama by squirting frozen food into a submerged cup near the net. For weeks I continued to do this, and soon the gobie would swim through my fingers when she saw my hand entering the water. Then she would swim into the cup. I kept positioning the cup closer and closer to the net. These fish are smart. If I missed getting her out on the first try, I might never gain her confidence again. This morning I put food into the cup, waited for the goby to enter, then swooshed the goby, cup and all out of the water and transferred her back to her home tank with papa goby. Papa seemed quite overjoyed! He kept swimming next to her, and then tempting her to join him in his PVC tube, swishing his tail inside the tube. Mama seems no worse for wear. I look forward to more 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: <Elacatinus Oceanops>
Tuesday, December 25, 2012 12:31 AM
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Kathy, if you could can I get a pic of the hydroids? doesn't have to be in journal PM is fine.... I has a theory I'm working on:p
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Re:Breeding Journal, Species: <Elacatinus Oceanops>
Wednesday, December 26, 2012 11:11 AM
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Unfortunately, I bleached that tank when the last goby larvae died, and I didn't get any pictures. If they pop up again, I try to get a shot.
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: <Elacatinus Oceanops>
Wednesday, January 23, 2013 9:22 PM
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Well, it is one month later. I again despaired of ever seeing another goby egg, and today I was thinking of buying another round of 5 brood stock, when this evening--you guessed it: Mama and Papa goby laid a new nest of eggs! Yay!
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: <Elacatinus Oceanops>
Tuesday, February 12, 2013 12:04 PM
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Any news on these guys? Did the hydroids return?
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Re:Breeding Journal, Species: <Elacatinus Oceanops>
Tuesday, February 26, 2013 8:43 PM
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Well, they kept eating the eggs on day 2, or else the bristle worms were eating them. They've spawned a couple of times since my last post, never keeping the eggs more than 2 days. This time I transferred their eggs and pipe to a sterilized heated bucket with saltwater and methylene blue and an airstone to keep the eggs moving on the morning of Day 2. They should hatch on day 6 or thereabouts, so wish me luck. Parental units have a replacement pipe which papa went right into within a minute of placement. Don't know about the hydroids. When I use the BRT for clownfish, they don't stay in there very long. If I find some more, I'll document.
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: <Elacatinus Oceanops>
Wednesday, February 27, 2013 12:14 AM
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Good luck with this batch. Odd that they started eating eggs after doing well previously. What is your feeding regimen like? I saw you are using rotundiformis and A. panamensis but in what ratio do you combine them? Joe
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Re:Breeding Journal, Species: <Elacatinus Oceanops>
Wednesday, February 27, 2013 1:18 AM
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Thanks for the well wishes. I combine the rotifers and the panamensis in the ratio in which they co-culture. My best panamensis culture is the one that sprang up in my rotifers. I do have a separate panamensis culture, but it isn't as robust. I have no idea what the ratio is, but there are gobs more rotifers than cyclopoids.
check out Kathy's Clowns, llc website: http://kathysclowns.com Captive bred clownfish and more (Wholesale to the trade.)
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