Hello Tomoko, I don't know what strain I have but I have used it in all twelve of my tanks for a couple years. I got it for free at my LFS one fall when pond season was over, they were throwing it out. I was big and had very long roots as a pond plant but grows smaller as an aquarium plant. It does die when it gets too much water on its leaves but reproduces so fast that I always have big rosettes. I have mine so close to the glass that it squashes them flat and they still do. In some of my low light tanks it grows small and dark green almost like salvina but if you take those small ones outside, in a couple of weeks they are big again like the original pond plants. I use it especially in my little bare bottom fry tanks as a kind of edge for water quality. It eats ammonia and lots of other stuff. I read in a magazine that they use it clean up chemical spills because it is so good at taking up pollutants. From my experience the stuff is as hardy as a rock and difficult to kill. Any kind of fry like to hide in the roots. On a strange note possibly of no interest to anyone but me, Glasshouseworks.com lists a velvet burgundy splashed variety for eight dollars a rosette. I have been sorely tempted for two years but couldn't bring myself to pay that for a weed. Maybe this will be the year I break down. Thanks, Teresa. ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com. apisto-digest@listbox.com also available. Web archives at http://lists.thekrib.com/apisto