Re: Can grindal worms survive freezing?

[George Slusarczuk <yurko at warwick_net>]

Hello Doug,

FIRST get rid of the fruitflies in your fishroom! The oldfashioned
_flypaper_ is well suited for that job. (In our area hardware stores
sell the flypaper.)

I get rid of fly larvae and mite infestations by repeatedly suspending
the worms in water. Mites float and are easy to separate from worms
(done that on micro and Grindal). 

Fly larvae sink, but are clumsy and will not wriggle through an about 1
mm opening sieve suspepded in water, Grindals will. Repeat the process
if necessary and you will have a clean culture.

To separate micro worms from fly larvae -- just use an artemia sieve:
micros will go through it (in water!), fly larvae won't.

As to freezing -- I don't thing anything will survive rapid freezing
(even goldfish have to be frozen VERY slovly!). Micros survive
refrigetaror temperatures for months.

Best,

George




Doug Karpa-Wilson wrote:
> 
> Well,
> 
> that's my question?  The fruit flies that have taken over my fish room are
> in the grindals too.  They aren't causing a problem, except for the adults
> that buzz around, so I was thinking of giving them the cold treatment that
> was suggested for my micros (which were all killed).
> 
> Doug
> 
> Doug Karpa-Wilson
> Department of Biology
> Indiana University
> Jordan Hall
> 1001 E. 3rd St.
> Bloomington, IN 47405
> 
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References:

• Can grindal worms survive freezing?
• From: Doug Karpa-Wilson <dkarpawi at indiana_edu>

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