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How pink is my Ammania gracilis
I posted a while back about all the red plants in my tank (Ludwigia sp,
probably perennis, Ammania gracilis, Eusteralis stellata) turning green.
(But the Alternanthera reineckii stayed a nice deep red-purple). About a
week ago I did a 75% water change, after which I added NO phosphate. The
Ammania pinked up right away, and the ludwigia is gettign redder, but the
Eusteralis is still green - and looking quite stunted and sickly. In
addition, the annoying green dust algae came back way faster, and overall
plant growth has slowed.
Next water change I will add a little phosphate (as dry KH2PO4) and see if I
can get better plant growth and still have pink plants.
Unfortunately my CO2 cylinder chose this week to run out, so it is possible,
I suppose, that it is the lack of CO2 which caused the color change. I guess
I'll have to repeat the experiment.
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