[jerseyjay]

South American Whitewater River
http://fish.mongabay.com/biotope_whitewater_amazon.htm

South American Clearwater Stream
http://fish.mongabay.com/biotope.htm#South American Clearwater Stream

South American Blackwater Creek
http://www.mongabay.com/fish/biotope_rio_sucasari.htm

South American Blackwater Stream
http://fish.mongabay.com/biotope_amazon_blackwater.htm