Re: [RML] Suitable tankmates for Pseudomugil cyanodorsalis/water conditions

Aquamail (aquamail at ozemail.com.au)
Thu, 15 Mar 2001 10:16:26 +1100

I'd agree with that Bruce. I had to wear a short wetsuit to feel comfortable
snorkelling in Harveys Creek. I'd estimate the temperature was around 18-20
degrees. A fantastic experience though- one I'd recommend to anyone lucky
enough to visit the area.

Speaking of water conditions. We had an ANGFA field trip to Minnie Water
(near Grafton, NSW) a few weekends ago. The rhadinocentrus were quite
spectacular, and surprisingly, 2 colour strains, red & blue, were collected
from the same creek. The tannin stained creek we found them in had
negligible kH or gH hardness, and very low pH.
The signifers we also collected from a different location were in pure fresh
water (in temperatures up to 27 degrees), but weren't nearly as colourful as
some I collected last year near Evans Head which were in brackish water.

Jennifer.
----- Original Message -----
From: Bruce Hansen <bruceh at powerup.com.au>
To: <rainbowfish at pcug.org.au>
Sent: Wednesday, March 14, 2001 11:49 PM
Subject: Re: [RML] Suitable tankmates for Pseudomugil cyanodorsalis

> Mach
>
> I remember being very surprised how cold Harveys Creek gets in winter and
> the blue-eyes from there are the largest in the country
>
> Regards,
> Bruce Hansen
> vicepresident - ANGFA Inc, ANGFA (Qld) Inc
> Please visit us at http://www.angfa.org.au
>
> ----- Original Message -----
> From: "Mach Fukada" <fukada at aloha.net>
> To: <rainbowfish at pcug.org.au>
> Sent: Tuesday, March 13, 2001 11:28 AM
> Subject: RE: [RML] Suitable tankmates for Pseudomugil cyanodorsalis
>
>
> >
> > I was actually pleasently suprised by this. I had supposed that the
> > northern forms of P. signifer would prefer higher temps, but they have
> > manged through the winter without heaters. Not a big problems you say,
> > being that I am in Hawaii, but It does get down to 12-15 C range here
> > on mountain. While I was in Honolulu I kept both in unheated tanks and
> > they did just fine inthe ambient conditions. Of course the Townsville
> > signifer seems to linke it warm to show off and spawn....
> > MTF
> >
> >
> > On Tue, 13 Mar 2001, Matthew Stanton wrote:
> >
> > > There are other good tank mates for them but what is your problem with
> just
> > > having a display of Pacific Blue-eyes?
> > >
> > >
> > > Also signifers and cyanos may clash in another way. Pacific Blue-eyes
> (at
> > > least those from NSW) are usually found in water considerably cooler
> than
> > > the coolest water that cyanodorsalis would ever be found in. My
Pacific
> > > Blue-eyes stay active down to about 10 degrees C and seem to survive
> > > sustained water temperatures down to at least 7 degrees C. A couple of
> weeks
> > > of 30+ degrees C water leaves them looking a bit worse for wear but in
> > > nature cyanodorsalis must spend most of their lives at these kinds of
> > > temperatures.
> > >
> >
> >
>
>