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Re: Live Foods Digest V2 #210
- To: Live-Foods at actwin_com
- Subject: Re: Live Foods Digest V2 #210
- From: John Clare <clarej at tcd_ie>
- Date: Thu, 1 Oct 1998 09:19:46 +0100 (BST)
- In-Reply-To: <199810010758.DAA28052 at acme_actwin.com>
Well as I haven't reared any Ceriodaphnia I wouldn't know. But when I say
Daphnia I mean the genus itself. Most in the genus tend to be
largish species (at least compared to other Daphnids).
Your green water pH problem probably stems from the starting pH of the
water, the dissolved salt content and the ammonia levels (I guess you know
that though). As long as you keep the ammonia levels down, D. magna and D.
pulex can do well at anything up to 9 from what I can tell. If only
ammonia didn't change in toxicity with pH :(.
On Thu, 1 Oct 1998, Live Foods Digest wrote:
> Date: Thu, 01 Oct 1998 07:36:40 GMT
> From: spflume at gwdg_de (Stephan Pflume)
> Subject: Re: Live Foods Digest V2 #209
> On Wed, 30 Sep 1998 15:58:02 -0400 (EDT), Owner-Live-Foods at actwin_com
> (Live Foods Digest) wrote:
> >The best food for all kinds of Daphnia is obviously free-living green
> >algae and/or euglena, even though they increase pH, this is relatively
> >easy to manage as Daphnia tend to be tolerant of high pH as long as there
> >aren't high levels of ammonia.
> According to my experience euglena seem to be too large to serve as
> food for smaler species of water-fleas (eg. Ceriodaphnia).
> Additionally I was not succsessful rearing Daphnia magna in very green
> water with high insolation (may be caused by pH increase).