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Re: Alternanthere sessilis

<<I just saw a fresh shipment of this plant from Florida.  It came in labeled
as "Sunset Hygrophila".  I would tend to believe its' preference is emersed
growth rather than in the aquarium.>>

<<I remember seeing a picture of this plant in one of the Baensch Atlases.
it had a deep maroon color.  I can see why they would call it  "Sunset
Hygrophila".  It does look like hygrophila poly. except for the color.  I
think Karl is right and that it is really a plant suited for emersed growth.
 I think the atlas said it wouldn't last long submersed.  Too bad my atlases
are out on loan or I could check to make sure.  Why is it called
Alternanthere sessilis when it looks exactly hygrophila poly. except for the
color?  >>

I'm a little surprised. I've always seen Sunset Hygro sold as Hygro poly var.
"Sunset", and always assumed it was a hygro. I've grown it for years side by
side my Hyro poly and they grow almost identically. Now I know it's really
Alternanthera sessilis. I was planning on ordering some A. sessilis, glad I
didn't! Well, anyway, it grows fine submersed in both my indoor
CO2/PMDD/Metal Halide setup, and my no-CO2 outdoor tank, where the leaves are
much smaller and quite red, maybe due to natural light. I have seen it go
emersed occasionally, and it does seem to require a bit more light than Hygro
poly to do well.

in Sacramento, CA