Since my soil flush the soil on both my plant seem to have lost it's ventilation properties. My plants always seem to be overwatered even though I'm not watering them as often. Is it possible for a soil flush to cause a ventilation proble on the soil????? . I really can tell the difference in my soil , now it looks thick.....need help... I'm thinking to change the soil ... not entirely but still , change it... I'm also thinking of doing it with the light closed so that I don't hurt the roots ? any pointers ????