Answer: It sounds like some type of fungus is growing on the surface of the pellets or possibly on dust that settled on the pellets. This is usually an indication that they are too wet, but not always. It can also be due to stagnant air or temperatures that are too warm or too cool. To combat the fungus, be sure you are not overwatering the pellets -- they should be barely moist, not sopping wet, and do not allow them to stand in water. Next you might try increasing the air circulation around them and be sure they are thinned sufficiently so they are not crowded. Some gardeners also report succes by watering the seedlings with chamomile tea. Finally, be sure you are not overfertilizing the seedlings as this can also contribute to the problem. Most seedlings do not need to be fertilized until they have grown several sets of leaves.
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