Professor's Nutrients - Hydro Clay Balls Athena Recommended for areas 4 -

Recommended for areas 4 - 5m³

co-enzymes and vitamins to aid in plant development and promote healthy beneficial bacteria and mycorrhizal activity

Self-supporting square bottom design Strong marine-grade stitching on handles and quad-stitch seam

Simple one touch navigation

Professor's Nutrients - Hydro Clay Balls Athena Recommended for areas 4 -Hydro Clay The Ultimate Growing Medium Available Sizes10L and 50L Professors Nutrients Hydro Clay is a premium growing medium made from 100% natural lightweight expanded clay aggregate, also known as LECA. Formed into uniform 8 16mm round pebbles, Hydro Clay is lightweight, porous, and designed to improve aeration, drainage, and root development for healthier plants. Ideal for a wide range of growing applications, Hydro Clay can be used on its own or