Grotek Cal-Max  4 Liter
An excellent source of additional calcium, magnesium and iron, Cal-Max can be used on all plants, providing calcium, magnesium and iron for your garden. This helps solve one of the most common nutrient deficiency problems facing fruit and vegetable growers as many soils or potting mixes simply do not have enough of those nutrients to keep the hungry plants growing. Using Cal-Max as part of your regular feeding program will help to eliminate leaf yellowing or flowers dropping off. It helps prevent tip burning in lettuce and cabbage as well as blossom rot in tomatoes and peppers. Use Cal-Max and enjoy the fruits (and vegetables) of your labor!

Write a review

Please login or register to review

Grotek Cal-Max 4 Liter

  • Brand: Grotek
  • Product Code: 732970
  • Availability: In Stock
  • $45.33
  • $30.37
For the more adventurous gardener, General Hydroponics offers the PowerGrower 8-Pack Kit that includ..
$687.48 $563.73

• 24 oz. RTU spray bottle• Dual active formula with pyrethrins and sulfur• Triple action - kills fun..
$8.95 $7.34

Replacement pre-filters just match the pre-filter to your Phresh Filter...
$9.95 $8.16

Danner Supreme Hydroponic AP-Series air pumps have been designed to satisfy the requirements of a mu..
$269.95 $221.36

The thermoforming process of these pots creates a thin wall nursery container of exceptional quality..
$0.52 $0.42

Produces up to 200 gallons per day of ultra-pure, low PPM water. Removes 98%+ of chlorine & contami..
$314.95 $258.26

Used during the vegetative stage to promote healthy plant growth, Gro Terra contains essential macro..
$62.05 $41.57

Our heavy-duty Wye Branches are made of a thick gauge galvanized steel. We have improved the design ..
$15.79 $12.95