In article ohitsystems.ltd.uk,
Rodney Pont wrote:
On Fri, 23 Oct 2009 19:37:12 +0000 (UTC), Richard Sexton wrote:
Lose the actinic, it does no good in freshwater whatsoever. Replace it
with a regular bulb and you've made the first real improvement.

Not strictly true to be honest. Photosynthesis does use the blue end of
the spectrum as well as the yellow and red end. It's green that isn't
really needed, after all most plants reflect it :-)

Well, yeah, and in theory it's true. In practice, any other bulb besides
that one and the plants would grow better though.

The OP has really got marine lighting and would be best to dump both of
them for freshwater and plants.

Ayup.

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