12-15-2005, 05:55 PM
Join Date: Jan 2004
iTrader Positive Rating: 100%
As good as the AGA forums are, I don't think any of the people you mentioned are regular posters. I do not think Christel even has internet access.
I know Karen Randall has visited the Amazon River system and actually had an article online about it. The only plants she collected in the blackwater rivers she ventured into were floating plants -- namely, Phyllanthus fluitans.
Tonina fluviatilis is also a blackwater species, but I am not sure how well it would do without CO2 injection.