Ionic Hydro Grow (Hard Water)

Vegetative nutrition for hard water

IONIC Hard Water Grow is a one-part base feed made for growers using mineral-rich tap water. The formula helps manage the bicarbonates that can push pH upwards and accounts for calcium already present in the water, giving plants a steadier nutrient balance during vegetative growth.

Key benefits

• One-part feed with no A and B mixing
• Designed for hard or tap water
• Helps reduce pH drift caused by bicarbonates
• Calcium balance suited to mineral-rich water
• Supports vegetative growth with a controlled potassium-to-nitrogen ratio

Application guide

Use 5ml per litre during weeks 1–3, increasing to 6ml per litre from week 4. Root Boost may be added at 0.5–1ml per litre according to the schedule.

Important

This formula is intended for hard or tap water. If you use soft or reverse-osmosis water, choose the standard Hydro Grow feed instead. Add Tonic only when a confirmed deficiency is present.

Available sizes

Available in 1 litre, 5 litre and 20 litre bottles.