These clay balls are the best hydrotons for potting your indoor and outdoor plants. They retain their shape and do not become compact unlike soil which results in them maintaining continuous air flow and hence healthy plant roots. These plant hydrotons are pH neutral and hence they ensure that plants get nutrients and you don’t have to worry about the acidic or alkaline soil in your plants. Since the best soil is pH neutral soil, these hydrotons work the best for your plants. 

These clay leca balls are best for your plants as they are sterile so there is no risk of harmful bacteria or disease in your soil.