Re: [RML] color

Tyrone Genade (Tgenade at
Tue, 13 Mar 2001 13:22:30 +0200

On 13 Mar 2001, at 20:19, Andrew Boyd wrote:

> Isn't it testosterone for blue? Or is it green?

I thinkit is guanine for the green colour. I don't think testosterone
can cause any colour pigmentation. Being a hormone, enough
testoterone to cause colour would also cause testicles.:-)

The irridescent colours are normally due to crystals under the skin.

> > On Mon, 12 Mar 2001 Piabinha at wrote:
> >
> > > is there anything that you can feed fish to accentuate the colors?

A healthy varied diet should increase colour and overall health. The
colour normally comes as a partner to good health and the right
environment factors e.g. morning sunshine.


Tyrone Genade
tyronegenade at

P450 Lab, Biochemistry Department
University of Stellenbosch, 7602, South Africa
Ph: +27-021-808-5876, fax: +27-021-808-5863

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