Richard Sexton wrote:

I've proved to myself that warm white work evry bit
as good.

May well work, because the "light colour" of fluorescent tubes has
little to do with spectral composition, as I explained in a different
thread.

If you want to go crasy you could add a cool white or daylight
as well, which is, by golly, what people used to use before all those
short lived designer pink petshop tubes came out.

Designer pink is plain ugly, I'd never use them. What I was recomending
is not those so-called "grow lights", but "tropicals" which have a
higher red contend than many standard tubes. Their light appears white
around 6000 K, IIRC.