I have tons of this variety in my discus tank and it grows like a weed. I have to trim it back weekly as it tend to rise very fast. The high temperature(86F) seems to make it grow even faster as it grows slower in another tank I have(78F). I have found that the discus like to munch on the sunset variety much more than the regular hygro. Dunno why though. <shrug> Warming up in Houston, Tyson tyson at phoenix_net http://tyson.cet.net/~tyson