I should of said....flowing slowly....guess it doesn't like 'a lot' of flow.
Likes 'some' shade....I've got to get mine covered before it get's too hot.


I don't remember 'where' i got this link (somewhere in DIY, maybe?) ... It's from Fishfarming.com

Shorter article, good basic info....on duckweed.

http://www.fishfarming.com/recirc.html