Change Page: < 1234 | Showing page 4 of 4, messages 61 to 73 of 73 - powered by ASPPlayground.NET Forum Trial Version
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Re: Breeding Journal, Species: Cerithium litteratum
Tuesday, July 8, 2014 1:57 PM
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You are correct, that just slipped my mind for a moment. I'll test it when I get my algal trials going (our FAF went bad, and a new bottle of it should be arriving by the time the workshop comes)
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Re: Breeding Journal, Species: Cerithium litteratum
Thursday, July 10, 2014 6:43 PM
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And Boom! Another nest appeared (There was a nest yesterday, but it was in such a poor position, that I lost the eggs to the water column/fish after I scraped them off... hopefully this will go better!)
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Re: Breeding Journal, Species: Cerithium litteratum
Thursday, July 10, 2014 6:56 PM
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Gosh darnit! Another nest lost  Hopefully I'll get yet ANOTHER one in the next few days....
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Re: Breeding Journal, Species: Cerithium litteratum
Thursday, September 4, 2014 11:45 AM
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Well, still spawning like crazy, have the microscope finally, and have good cultures of dun and iso goin. Time for another round!
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Re: Breeding Journal, Species: Cerithium litteratum
Wednesday, September 24, 2014 9:02 AM
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After seeing lrood's design, it got me thinking and I'm trying a sieve now with 47um mesh. I got two egg masses and stuck them in it along with some dunalia in case some hatch today while I'm out. More pics to come when they hatch.
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Re: Breeding Journal, Species: Cerithium litteratum
Wednesday, September 24, 2014 12:19 PM
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Something you might think about: If you are going to keep these cultures inside a display or large tank where you can't keep the phyto density high all the time then you might consider a constant drip of phyto. 47 um is not going to keep any phyto inside your container where you need it.
Good luck, though!
--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: Cerithium litteratum
Wednesday, September 24, 2014 12:44 PM
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Thanks Andy, yea I figured I'd be pouring phyto in like crazy. Perhaps something smaller? I have 5um I believe, so that COULD work better. I might just try the drip system though as well. Thanks!
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Re: Breeding Journal, Species: Cerithium litteratum
Wednesday, September 24, 2014 3:22 PM
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That's something I worried about too. I'm not sure how high the phyto concentration needs to be, but whenever I checked a sample under the scope, I could always see some t-iso twirling about, as well as the occasional tet zooming by, that I had previously tossed in. Still might not be enough though, and the drip system makes good sense.
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Re: Breeding Journal, Species: Cerithium litteratum
Wednesday, September 24, 2014 6:00 PM
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Just make sure the flow is fast enough that your phyto doesn't die inside the tubing before it gets to the veligers. 5um might work better. It won't hold nanno, but I can't remember the sizes of the other phyto you're working with. It ought to hold Dunaliella just fine. On the other hand, it'll foul really fast, too. Sounds like a good idea for a research project: Diffusion times of different sized phyto through various mesh sizes with only passive water movement. Or something like that. 
--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: Cerithium litteratum
Friday, September 26, 2014 1:59 PM
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Hey Andy, that does sound like a good idea! Might give it a try after tennis season is over (Like one week from now), since I'll have more time then. So I was looking at the veligers, and two days after they are hatched (not sure if it was yesterday or today, but I do know for certain the egg masses were laid the same day), and I discovered something interesting. 1-2 days post hatch, I'm already discovering some of those larvae in different "stages." Or, at least up to this point I thought they were. Someone can just tell me "yes they are two different stages, you've been right." But here is my thought, the ones without the "long mouth?" - see reference to my originally thought Nerita tessellata thread - http://www.mbisite.org/Fo...mp;m=84629&mpage=2 - Well, back in that thread I had said that perhaps it is either a stage, OR they could be starving. I believe the veligers are starving/unhealthy. They don't show the same hunting pattern as the original stage, nor do they move as fast. I already noticed a few of them in here, but not a whole lot. Could this just be me making scientific guesses that are false? Here is a comparative pic of these two "stages" or "factors" I am talking about. 
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Re: Breeding Journal, Species: Cerithium litteratum
Monday, September 29, 2014 8:35 PM
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Hey Andy, I'm gunna try your idea and try and setup some gravity-fed "dosers" for the algae. My veligers are still kicking and doin ok, seeing much more "stage 2," but also some "stage 1's," so who knows. I'm going to dose Iso, Dunaliella, and - crazy idea here - RG Complete. Should do ok I think, I've got plenty of spawns to go through so might as well try something! I'll update in a few days on how that's going.
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Re: Breeding Journal, Species: Cerithium litteratum
Tuesday, September 30, 2014 8:39 PM
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RG Complete is some good stuff. I was growing my crazy copepods on nothing but the same stuff, plus you are getting the anti-ammonia from that, too. Can't hurt to try it.
I have no idea if your theory on the veligers is correct. If they are healthy, though, they should be feeding pretty constantly with only short breaks. If they aren't doing that then there's certainly something wrong.
--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: Cerithium litteratum
Wednesday, October 1, 2014 7:04 AM
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Most likely something wrong I think, since I tried searching for some veligers and no one popped up thus far. Although there were some black small things hanging off the side of the PVC....... Trying not to get my hopes up too high!
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