I've been growing 3 plants in the aerogarden. One plant was my largest and happiest fell over half way up. Is there any way to save her? Now my weakling is flourishing and my small plant is starting to grow. Any ideas would be appreciated. The plant looks like it is withering but it has a full water tank, nutes in the tank and an airstone directly under it. It was doing fantastic. Now it is weak and appears to be dying. Help!