General Hydroponics Armor Si Silica Harvest More The Hanna HI98130 is a

The Hanna HI98130 is a waterproof

so you can dial airflow to the stage

Compatible with all growing media and systems

147 ft head

Lid marks with non-permanent marker and the container stacks

General Hydroponics Armor Si Silica Harvest More The Hanna HI98130 is aGeneral Hydroponics Armor Si: Potassium Silicate Supplement for Stronger Stems and Stress Tolerance General Hydroponics Armor Si is a 0 0 4 silica supplement built around potassium silicate, which is the form of silica plants can actually put to work inside cell walls. Silicon gets deposited as opal phytoliths along cell walls, stem tissue, and leaf cuticles, and that structural reinforcement is what lets a plant hold heavier flower weight, shrug off