BioBizz Microbes Bulky Magne-Cal+ also contains a little

Magne-Cal+ also contains a little NPK to help keep leaves green and also extra micro-nutrients: Iron

The outside white layers efficiently reflect light back into grow-areas while the layer of black sheeting in-between prevents light leaking through the sheeting from one side to the other

powerful enough for large tents and bigger canopies

and you can leave your pH meter at home

Strengthens plant immunity

BioBizz Microbes Bulky Magne-Cal+ also contains a littleBioBizz Microbes Boost Growth, Roots & Yield with Organic Microbial Power New to BioBizz? Try the Starter Pack or a Try Pack for an easy way to get started. BioBizz Microbes is a powerful blend of beneficial bacteria, enzymes, and fungi designed to drive vigorous growth, support explosive root development, and increase nutrient uptake and yield quality. It promotes faster germination, healthier seedlings, and stronger plants throughout the grow cycle.