No Room at the Inn

Once again our system has perfect temperature, water level, pH and tubing operation.  Our plants are looking a little better since decreasing the water given to them each day.  A new development is the fact that there is now green growth on some of the cubes and over the perlite.  Not really sure what that is all about.  We are fairly sure that a main contributor to the poor growth is the lamp our plant is under.  All of the systems under our lamp are doing significantly worse than those under the other lamp.  We would move our system over but, in the good Christmas spirit, there is no room at the inn and no groups really looking to move their system to a less appealing spot or even closer to the edge of the tray to make room for more.    Maybe the decreased water will continue to help the plants.