Re: White worm culture

[George Slusarczuk <yurko at warwick_net>]

Hello RJ,

Which synthetic medium and how do you use it?

Best,

George



Tranquility Base wrote:
> 
> Hi Barry,
> 
> There is no confusion, white worms do better at warmer temps in synthetic
> cultures. There is a big difference between synthetic cultures and dirt
> cultures. In dirt cultures White worms grow larger than grindle worms, in
> synthetic the reverse is true. Of course in synthetic cultures you are
> harvesting every day or two so they really do not have time to get very
> large.
> 
> I believe that the difference is primarily the source of water. In a dirt
> culture, high temps cause evaporation that reduces the water available to
> the worms in a synthetic culture the evaporation/humidity is the water that
> the worms actually live on.
> 
> White worms do much better than grindel worms in synthetic cultures.
> Grindels seem to undergo a boom and bust cycle. Just when they start
> producing well, poof everything is dead. White worm cultures can be
> maintained for years. I maintain seven shoe box white worm cultures that
> feed my entire setup. I get one to two golf balls of worms every day in the
> summer, less in winter. I keep 4 grindel worm cultures that produce very
> little in comparison.
> 
> Peace,
> 
> ~RJ~
> 
> -----Original Message-----
> From: owner-killietalk at aka_org [mailto:owner-killietalk at aka_org]On
> Behalf Of Barry Cooper
> Sent: Friday, November 01, 2002 2:29 PM
> To: killietalk at aka_org
> Subject: Re: White worm culture
> 
> At 11:10 AM 11/1/2002 -0800, you wrote:
> 
> >Tish KB wrote:
> >
> >regarding brown mites:
> 
> You may want to try placing a mothball in the culture. Just stick in one
> corner of the container. I have friends in the UK who swear that this will
> control mites. I can tell you that I have used mothballs to try to control
> little flies that get in my grindal worm cultures.  The mothballs do not
> harm the grindal worms, so I doubt that they would harm the white worms.
> 
> I have seen some comments about white worms doing well at high
> temperatures, like in the 70s and 80s. To my knowledge that goes against
> all conventional wisdom. White worms do best in the mid-50s to low 60s, and
> cultures will at best hang on in the 70s. That has been consistent with my
> experience.
> 
> Grindal worms, in contrast, do well in the mid- to high 70s. I wonder if
> there has been some confusion in the identity of the worms being discussed.
> White worms are considerably bigger than grindal worms. On the other hand,
> I find grindal worms easier to culture under my conditions and I can
> produce enough to feed my whole fishroom regularly. They are also a great
> size for fish larger than about 15 mm, and they're useful for even full
> grown nothos.
> 
> I don't do white worms any more as I have ready access to black worms.
> 
> Barry
> 
> Barry J. Cooper, Prof. Emeritus, Dept. Biomedical Sciences, Cornell
> University
> Adjunct faculty, College of Veterinary Medicine, Oregon State University
> Home address: 27505 Riggs Hill Rd., Sweet Home, OR 97386 (bjc3 at cornell_edu)
> 
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