>> Are you guys running these systems so the plants grow more quickly, grow >> more lush/full or to sustain more delicate species that couldn't pull >> through without it? I have a hard enough time keeping up with trimming my plants WITHOUT any fancy gizmos or CO2 injection, but I've spent years killing various species of plants figuring out which ones do well in my low tech systems, and which ones don't. You can get a pretty lush looking tank without ANY special equipment. I guess the first question you have to ask is whether you grow plants for the PLANTS or whether you grow plants to keep critters happier. As long as I can create a planted environment for my critters, it's OK with me if Amazon swords are impossible for me to grow (wink). Betty Goetz _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member