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Re: Hatching water
I think Peter's method works well for some fish in some water. IDK what his
Hawaii water is like, but he did mostly W. Africans in very soft Palo Alto
water when he lived here. Ideal for many of those fishes!
I have lived in "liquid rock" country (Santa Clara) and intermediate hard
(Fremont) where that didn't seem to work as well on those fish types. Many
Nothos and SA annuals do great in my harder water. Many mop-spawners seem to
have trouble hatching if the Ca+/Mg+ or CO3- (IDK which) are too high. Some
fish won't even spawn in 300 ppm water in the first generation or two from
the wild. [My wild Bettas are often particularly touchy about this.]
I mix some RO (up to 80-100%) for the fussier wild fish to live in, and am
starting to think that lowering tds gradually on the eggs of those spawning
in harder water is probably beneficial. I start them in Petrie dishes of
tank water, and do 50% daily changes with RO to slowly acclimate them to the
low tds without too much osmotic shock. I could do it much quicker if I used
salt (in RO), as Peter does, and just matched tds.
These are all impressions, because it would take too much time for me to do
really good experiments. The amount of RO (or distilled water is tiny) so
this might make a great science fair project. The results would interest
many of us, here.
Since Steven requested some "prosaic wax," here's one thought for
consideration:
Tank water usually has a healthy, if invisible, collection of infusoria
growing in it. That infusoria feeds on bacteria and fungal spores.
Originally pointed out to me by David Gurr, I have observed that small
amounts of new water with and without a sprig of Java moss have enormous
differences in clarity after a few days. The plant seems to act like a
filter. I assume it is attached rotifers doing the job, so I usually add a
small sprig to my egg Petrie dishes. The result seems to be less bacteria
(the precursor to fungus) and sparkling water clarity. This might explain
Gunnar's observation. No?
Wright
Peter Tirbak wrote:
>
> I have always used fresh, aged water with a little salt in it, and have
> always done well.
>
> Peter Tirbak
>
> > From: gunnar asblom <agakilli at algonet_se>
> > Reply-To: killietalk at aka_org
> > Date: Thu, 03 Feb 2000 01:26:51 -0800
> > To: killietalk at aka_org
> > Subject: Re: Hatching water
> >
> > halbasch at es_com wrote:
> >>
> >> In most of the books and web messages relating to egg storage or hatching it
> >> is usually stressed to use the water that the eggs came from. It would seem
> >> that fresh aged water, of the same temperature , pH etc, would be wiser. I
> >> haven't read or heard of the reasoning behind the practice - other than it
> >> works. Anyone care to elucidate and wax prosaic?
> >>
> >>
> >> Steven G Halbasch
> >>
> >> Layton, Utah
> >> ---------------
> >> See http://www.aka.org/AKA/subkillietalk.html to unsubscribe
> > If I use fresh aged water instead of water from the tanks I will have
> > problem with fungus.
> > Gunnar.
> > ---------------
--
Wright Huntley, Fremont CA, USA, 510 494-8679 huntleyone at home dot com
"DEMOCRACY" is two wolves and a lamb voting on lunch.
"LIBERTY" is a well-armed lamb denying enforcement of the vote.
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