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Re:Culture Journal, Species: Parvocalanus crassirostris
Friday, June 28, 2013 11:44 PM
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 Originally Posted by KathyL
Have you incorporated Andy's standpipe design?
Please refresh my memory about what you are referring to.
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Re:Culture Journal, Species: Parvocalanus crassirostris
Sunday, June 30, 2013 8:36 PM
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That's a good question, because I haven't seen a picture of it yet, but its a standpipe with many holes throughout its length, covered with 30 micron mesh. It is attached to a bulkhead that enters through the bottom of the container and angles out with a valve . Obviously this is supported on a stand of some type. The idea is that one can open the valve to drain the container taking old water and ciliates out, leaving copepods in. Then close the valve and refill with pasteurized saltwater.
Problem I have with the design is that I catch ciliates in 30 micron mesh all the 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:Culture Journal, Species: Parvocalanus crassirostris
Tuesday, July 2, 2013 7:23 PM
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the copepedites and ciliates are the same size, hows a mesh standpipe going top help?
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Re:Culture Journal, Species: Parvocalanus crassirostris
Tuesday, July 2, 2013 10:43 PM
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And i either have a lot of dead ones, or lots of molts….Perhaps I am not feeding 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:Culture Journal, Species: Parvocalanus crassirostris
Wednesday, July 3, 2013 12:38 AM
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Jim, do you find that you need to feed the Parvocalanus more and more frequently than the Apocyclops? My Apo cultures thrive on very light, once a week feeding, and my parvo cultures seem to need 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:Culture Journal, Species: Parvocalanus crassirostris
Wednesday, July 3, 2013 12:50 AM
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I most certainly do feed my Parvocalanus (and, FWIW, my Acartia) more frequently, but also more lightly, than my Apocyclops cultures.
Quite frankly, I find Apocyclops almost impossible to kill, short of abject warfare. Parvocalanus, on the other hand, are much more temperamental. On the whole, I have found that Parvocalanus need (1) Very light feeding, (2) Very frequently. I feed my various Parvocalanus cultures, in general, at least once daily, and often twice daily. As I have repeatedly said, I tend to err, if at all, on the side of underfeeding. I have found that very light feedings, once or perhaps twice daily, is what does best. Assuming that there is a decent population of copepods in your culture, a feed rate that would amount to about 75,000 cells of Isochrysis per mL per day is about right. Less food, down to even as low a rate as perhaps 10,000 to 20,000 cells of Iso per mL per day, may suffice. Greater feed rates exceeding perhaps 200,000 or 300,000 cells of Iso per mL per day will cause problems.
I have found it important to learn to visually guage the amount of tinting in my cultures, and if I can detect any discernable tinting remaining in my Parvocalanus cultures when it is feeding time, then I skip this feeding, and wait. I have also found that the cultures where I observe the excess tinting have some other issue going on, and they rarely recover by themselves. Often, they need a large (read: 100%) water change (sieve through a 27 micron sieve, and backwash into freshly made, unused, aged saltwater, all the while avoiding any unnecessary exposure to air), and then very light feeding afterwards.
I hope this helps.
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Re:Culture Journal, Species: Parvocalanus crassirostris
Wednesday, July 3, 2013 12:54 AM
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Of course, it does.
check out Kathy's Clowns, llc website: http://kathysclowns.com Captive bred clownfish and more (Wholesale to the trade.)
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Re:Culture Journal, Species: Parvocalanus crassirostris
Sunday, August 11, 2013 1:15 AM
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updates? have you (or anyone one for that matter) co cultured this with anything? (intentional or not?)...
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Re:Culture Journal, Species: Parvocalanus crassirostris
Sunday, August 11, 2013 9:18 AM
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There are some in my ciliate bucket. I'm trying to remove the rotifers from my primary culture. Haven't checked this week.
check out Kathy's Clowns, llc website: http://kathysclowns.com Captive bred clownfish and more (Wholesale to the trade.)
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Re:Culture Journal, Species: Parvocalanus crassirostris
Sunday, August 11, 2013 12:29 PM
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No co-cultures of anything with my Parvocalanus yet.
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Re:Culture Journal, Species: Parvocalanus crassirostris
Sunday, August 11, 2013 3:46 PM
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mmm. ok! well, I'm going to start up my Iso soon (maybe this week, if I can get an order to arrive!) and see how well I can keep that going. Then get an order of the parvo in and try my hand at it! ... It's threads like this that are well descriptive that encourage me to try my hand at it! lol... Thanks Jim!
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