Purpose
Support the calcium and magnesium component of the source water.
WATER TREATMENT
CANNA Calmag Agent
Calcium and magnesium support for soft or reverse-osmosis water. A water-conditioning step where needed — not an automatic addition to every nutrient program.
Consider when
Working with soft or RO water, after reviewing water quality and your base nutrient.
Dose selection
Use the applicable product label and a verified dose for your actual water.
Check the water before setting the dose.
Starting-water EC is useful context, but does not by itself identify how much calcium or magnesium is present. Review water analysis, including hardness and alkalinity, alongside the nutrient system.
CANNA publishes different regional directions. The UK reference describes soft-water preparation before the main nutrients; the Australia/New Zealand reference gives a different dose range and mixing order. Do not combine those instructions or assume that one regional version applies to every bottle.
Confirm the exact product and applicable label with CANNA Thailand before selecting a rate or mixing sequence. This page does not establish a universal dose, Thailand approval or stock availability.
Manufacturer references
These references are shown separately to preserve their regional scope, not as interchangeable recipes.
Plan only the water you actually treat.
For a facility requirement, multiply the verified dose in ml/L by the treated water volume in litres, then divide by 1,000 to obtain litres of Calmag Agent. Keep the calculation period explicit and do not multiply crop cycles twice.
Finishing or water-only flushing must not receive Calmag automatically. The current facility calculator has not been changed to include Calmag in this release.
Water data first. Product requirement second.
Send your water analysis, nutrient system and treated water volumes to CANNA Thailand for review. Quotation and ordering are coordinated through your assigned CANNA partner; availability is confirmed separately.