Hi, all! Attached is a picture of the avocado seed that I have been germinating in water for 6 weeks. It has split completely, the roots are both 5-6 inches long, and there has been a visible tiny green sprout in the middle of the seed for about a week now. It has recently (in the past two weeks) developed these "growths" on the roots and around the tiny sprout in the middle. They are white, they come off if I rub on them, and they grow back within a few days. Is this a fungus? Is this harmful to my seed?