I purchased 3 Siamensis (yes, they are definitely the real thing, I checked at the store in Baensch's Atlas) from The Pet Shanty on Route 22 in Scotch Plains (?? - or whatever town Bowcraft Amusement Park is in). If you plan on buying some (they were $1.99 each or three for $4.50) mention that you read of their availability on the internet, they'll be happy to hear that! Bye bye algae! Adam Aronson