Vitalink Coir Classic Growth & Bloom VitaLink Coir is a 1-part feed for use in coco coir media, the classic grow and bloom are balanced one-part formulations of macro and micronutrients specially designed for growing in coco coir. Coir Classic guarantees simplicity and incredible results. The formulations consider water quality, therefore soft or hard water versions are available. Coir Classic contains humic acids and chelated micronutrients which improve plants uptake of nutrient solution, resulting in better photosynthesis and thus increased vigorous growth and flowering. The mixed nutrient solution is highly stable. Available in 1Litre, 5Litre & 10Litre