I have about 3/4 inch of sand,(i like the look) only thing is I CAN NOT GET HAIR ALGEE OUT OF MY TANKKKKKKKKKKKKK. I slowly took out the bio balls, would it help if I reduced the sand bed? And yes, I do water changes, have a skimmer and dont overfeed. Just cant seem to get it out. I live the light on 7 hours dailey, maybe a little more on weekends.