Re: growth rate of fry and water changes

[David Sanchez <barbax2@yahoo.com>]

This is an excellent Idea! This is what a list like this should be all
about. We may actually get some real data on the subject. The results
will not be scientific of course because we would have to be
consistent and control all variables ie:wild fish, tank raised, Ph,
DH, food, etc... Never the less I beleive it will be very worthwhile.
Count me in. Perhaps we can choose a readily available species perhaps
A.borelii? since that was one of the fish in question. One of my very
good friends is a graduate student working on his doctorate in
Ichthyology at a local university perhaps i could talk him into
desighning our quasi scientific study? perhaps others out there on the
list could.

Dave  


---ALEX PASTOR <alexp@idirect.com> wrote:
>
> Okay people "hear ye, hear ye"
> 
> The only means by which this argument can be logically ended is if
people
> with sufficient tanks would divide a batch of fry equally in half. 
Grow
> them out in separate tanks under the same conditions, except do
weekly, or
> twice weekly 50% water changes on one tank, and 30% monthly changes
on the
> other.  Within three months there should be sufficient data to
conclude as
> to whether apistos grow faster or not depending on the rate of water
> changes.
> 
> There are some people corresponding on this mailing list who claim
that
> their fry reach the stage where sexual dimorphism is apparent after
only 3
> to 4 months, and others who must wait 8 months.
> 
> Sufficient data can be collected with relative ease given the number
of
> people participating on this list.  So,...start your engines...
> 
> G. Kadar
> 
> 
> 
> 
>
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