Well it seems ever since I added all my plants my cories have not been as adventorious as they wher ebefore no plants.. now the whole shoal jsut sits in the back.. behind all my plants. is soemthign wrong? I have a slight nitrIte problems but it is so low it doe snot even register as 0.25 popm it is jsut a slightly darker blue then 0ppm blue. bgut that started yesterday.. I put waffers in and they are still there.. they arn't looking for food.. what is up?