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Re: Daphnia (was Live Foods Digest V3 #176
There are many ways of keeping Daphnia. What I do is harvest about 1/2
of the volume and replace SLOWLY (through an air line) with new water.
Settled "fish water" that you siphoned from a fish tank during water
changes works very well for me.
Yes, Daphnia do molt. I keep some pond snails in the containers. They
clean up after the Daphnia. The snail droppings on the bottom have a
bacterial population and provide some food for the Daphnia. When the
crud gets thick, over 1/4", I start a new culture. Cleanliness is one of
the things Daphnia do not like!
> Date: Mon, 9 Apr 2001 09:43:41 -0500
> From: "Tomoko Schum" <tomokoschum at earthlink_net>
> Subject: How to clean daphnia tank
> Hi everyone,
> Thanks to everyone's advice my daphnia cultures
> (see it's in plural ?) are growing really well.
> However, I found this morning that I lost a batch
> in a small container due to a airline falling out
> of the container.
> I believe it is high time that I do a water change
> for them. I have been adding some water as I
> harvest them. But there is a pile of what appear
> to be daphnia shells (do they molt?) on the bottom
> of the containers. I sucked some out with a small
> turkey baster but the little guys keep getting in
> the way.
> When you do the water change/cleaning of the
> daphnia tank, what do you do to keep them from
> getting sucked out? Is there any trick that
> someone can share with me?
> Thanks in advance,