Since starting with a new tank and CO2 I have been amazed at how fast and robust stuff grows, especially things I could never grow well before in my low tech tank like dwarf grass, pearl weed, baby tears, etc... However the things that stick out for NOT growing well are java sword (narrow), java fern (narrow), and anubias. My java sword turned yellow/brown, although does not look withered, more like its on its way to a red color or something but got stuck as yellow/brown. But it has not grown an inch in 5 weeks. My java ferns look exactly like the day I got them, not one bit of growth at all. And my anubias appears to be just hanging on. It still looks ok but some of the leaves are starting to get holes. It gets algae on it although my algae crew keeps it clean. And like the java's, there is no growth at all in a month of time. I know its a slower grower but I would have expected something. Is it possible these "low light friendly" plants don't like too much light or CO2?