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Re: Green Water and Daphnia
- To: Live-Foods at actwin_com
- Subject: Re: Green Water and Daphnia
- From: Paul Krombholz <krombhol at teclink_net>
- Date: Wed, 11 Dec 2002 07:08:02 -0600
- In-reply-to: <200212111007.gBBA7XEv016144 at otter_actwin.com>
- References: <200212111007.gBBA7XEv016144 at otter_actwin.com>
I have never had the slightest problem producing green water with
reasonably bright light---three or more watts of fluorescent light
per gallon---and guppies. Just feed the guppies flake food liberally
once or twice a day. With two 40 watt AH compacts on a 29 gallon, the
rate of growth of the green water algae is very rapid, and other
forms of algae, such as bluegreens seem to be inhibited. The work in
growing Daphnia with this set-up is all in moving the water from the
guppy tank to the Daphnia tank and replacing the water in the guppy
tank. I have tried raising the Daphnia in a "cage" made of
monofilament mesh in the guppy tank, and they multiply rapidly and
eventually clear the green water. I have only used the Daphnia cage
concept to clear up green water, but it could be used to raise
Daphnia. For maximum production, the population of Daphnia should be
harvested often enough to keep them from clearing the green water.
Do not go to a fabric store and get woven nylon curtain material for
the Daphnia cage. It releases substances that kill plants and green
water algae. Avoid any fabric made of woven threads. The cage
should be made of a monofilament mesh, preferably of a material that
is not subject to bacterial breakdown.
--
Paul Krombholz in frosty central Mississippi