Roy Hunter
Co-Chairman
ANGFA of North America
visit the ANGFA website at:
http://www.angfa.org
reach me at:
roy at angfa.org
----------
> From: Gary Lange <gwlange at stlnet.com>
> To: rainbowfish at pcug.org.au
> Subject: Re: [RML] australis "Drysdale"
> Date: Friday, May 23, 1997 7:17 PM
>
> The fish that was distributed thru Ekkwill as 8 lined red tailed, at
> one time was an australis that Heiko sold to them. Since he never
> bothered to tell anyone about the exact location where he collect the
> fish it is a mystery. they are indeed thicker bodied that the
> Drysdales that we obtained through Ron. They almost looked splendida
> in size and shape. In some ways that fish is brighter in color than
> the Drysdales that we had obtained through Ron Bowman. I have, over
> the years obtained some 16 fish that grew up that were all males,
> except for one female that refuses to lay even a single egg, and is
> very sorry looking. Our RSG editor, Kevin Hosmer also grew some
> dozen of these fish without producing a single female. I think that
> perhaps this particular fish needs to be raised in water that is much
> harder than my water (125 ppm or at least higher in pH) to produce
> acceptable sex ratios. In the past there has been a "trend" for more
> males to be produced in water that isn't quite so hard, that is that
> tends to go acid easier and for more females to be produced from
> water that is more alkaline, and perhaps harder. Whether this
> "trend" is real or just imagined really remains to be proven,
> hopefully with some proper controls. The cichlid people for years
> have lived in a fantasy world believing that Apisto spawns had their
> sex ratios greatly affectly by the pH of when the fry were conceived.
> A german, Uwe Romer, pretty well shattered that theory when he
> showed that the single most important factor was instead temperature.
> Hopefully we won't settle into any of these myths of our own but
> keep them out their as "theories" until proven otherwise.
>
> Gary Lange
> gwlange at STLNET.com
> Rainbowfish Study Group of North America
> http://home.stlnet.com/~gwlange/rainbowfish.index.html
> Convention info at: http://www.sfaquarium.org
>
> ----------
> From: Jack W. Betz <Jack_Betz at msn.com>
> To: rainbowfish at pcug.org.au
> Subject: [RML] australis "Drysdale"
> Date: Friday, May 23, 1997 2:53 PM
>
> Roy, et al,
> I guess the drysdale-like fish I have must be one of them there
> Florida
> mongrels. They were one of the first bows I found at a local fish
> shop about 3
> years ago. The commercial name was " 8 Lined Red Tail Rainbows ". M.
> s.
> australis "Drysdale" photo on cover of "Best of RSG" is very, very
> close to
> what they looked like when I first got them, but now they have more
> intense
> blue on backs with more distinct belly stripes, and solid red tails.
> They do
> show some morphological differences within spawns, sometimes
> strangely
> parkinsoni-ish, and I have been selecting for bright blue backs with
> solid red
> tails. Just my own personal project ya know.
>
> ----------
> From: owner-rainbowfish at pcug.org.au on behalf of Roy Hunter
> Sent: Friday, May 23, 1997 9:27 AM
> To: rainbowfish at pcug.org.au
> Subject: Re: [RML] scavengers (fish)
>
> Jack, from What Gary has told me there were never both sexes of the
> Drysdale river australis in the country, they just "looked" like
> them.
> I had seen the ones going around as the drysdales and they didn't
> look
> anything like the fish I brought back that I received from the man
> who
> collected them originally.
>
> Roy Hunter
> Co-Chairman
> ANGFA of North America
> visit the ANGFA website at:
> http://www.angfa.org
> reach me at:
> roy at angfa.org
>
> ----------
> > From: Jack W. Betz <Jack_Betz at msn.com>
> > To: rainbowfish at pcug.org.au
> > Subject: RE: [RML] scavengers (fish)
> > Date: Thursday, May 22, 1997 7:19 PM
> >
> > Jim,
> > My G. incisus were always good bottom feeders, when I had them.
> Also M.
> > splendida australis "Drysdale River" will pick the bottom alot.
> >
> > Jack