Vitaponix — nextgen nutrients

Visual Guide

Magnesium Deficiency.

Supplement with Epsom salt (1g/L) or a Cal-Mg product

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Interveinal yellowing on older leaves firstPhoto

Deficiencies

Interveinal chlorosis appears on older leaves first, with yellowing between the veins while veins stay green. Leaves may develop reddish-purple tints and drop prematurely.

Looks like this

  • Interveinal yellowing on older leaves first
  • Reddish-purple tints on leaf margins
  • Premature leaf drop in severe cases

Solve it with Vitaponix

VitaSweet

VitaSweet →

Designed for LED growing: increases chlorophyll production and the use of magnesium and iron. 1 ml/L, weeks 3–8.

VitaBase

VitaBase →

Growth-phase base nutrient, 2–6 ml/L in weeks 1–6. Strongly reduces the need to flush mid-cycle.

How to fix it

  • Supplement with Epsom salt (1g/L) or a Cal-Mg product
  • Check and balance pH within 5.8–6.3 (official chart)
  • Reduce excess potassium if it's the cause

Why it happens

  • Low magnesium in the feed or substrate
  • High potassium or calcium levels causing antagonism
  • Low pH (below 5.5) limiting Mg uptake

Prevent it

  • Include a balanced Cal-Mg supplement in coco and hydro setups
  • Maintain stable pH and EC
  • Use a base nutrient with adequate magnesium

Official feeding chart

Target pH (official chart)
5.8 – 6.3
VitaSweet
1 ml/L, weeks 3–8

Doses and targets come from the official Vitaponix feeding chart. Vitaponix nutrients are plant nutrition, not pesticides or fungicides.

Prevent it next time

Get the full 10-week feeding schedule.

Open the feeding chartShop Vitaponix →