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Blue Light
Subject: Blue Light
> There has been some
>suggestion that actinic lamps will help maintain red coloration in aquatic
>plants....anybody tried this?
I've just started experimenting with some new 6500K T-8 bulbs (Sylvania)
mixed with my 5000K GE SPX50's. I did it mostly because I liked the very
clean "sunny" look it gave the tank. I have found though, that the R.
macrandra, which grows well in all my tanks is _much brighter red than in
the other tanks. It's not just that it looks brighter because of the light
color. If you take a piece out of each tank and hold it side by side, you
can see a big difference. (both look perfectly healthy, however) I like
this combination enough that I've switched my other tanks over so they are
all about half and half each type.
I have _not_ seen any noticeable difference in red Crypts, although that
would take longer to show up in any case. I have some Ammania in one of
the tanks that I just swqitched over, so I'll be keeping an eye on this to
see how it responds. The copper in my tap water precludes my use of
Ludwigia sp., so I won't be able to report on them.
Karen Randall
Aquatic Gardeners Association