Thank you all for the great info!
How large do these plants get? I just got a G. hispidula and a G. pygmaea that can sit on a dime with room to spare.
They are currently in a pot with dead LFS that is flooded to just about 1 cm under the surface of the moss.
Once they are established they will spread by dividing and by sending up shoots from the traps. G. hispidula will spread quite quickly once it established, G. pygmaea will spread more slowly, doubling in size each year or so.
G. pygmaea has leaves about 2-3mm wide and 1cm long when mature. G, hispidula has larger leaves - about 1cm across.