aquatic plant club in the SF Bay area is sfbaaps
. Membership is free and open to residents of the greater SF Bay area. Our next meet will be on the 17th, in Albany.
There are also a number of more fish oriented clubs such as the Silicon Valley Aquarium Society (SVAS)
, and the San Francisco Aquarium Society
. There are more, and links to the other various clubs can be found at the above sites.