Thanks for all the help I have been cleaning it off the glass & filter & heater the fish I have seem to be eating some of it I have 2 Gouramis, 10 neons, 10 glowlights, 4 corys, 4 golden barbs. The tank is 4' so there is plenty of room for them. Would getting some more plants help I only have 11 plants in the tank. It still looks a bit bare in places. I have some photos how do I put them up for you all to see. I am not very computer savy.