Canna Calmag Agent Size:1L especially during the nutrient-hungry peak

especially during the nutrient-hungry peak flowering stage

Open-ended design keeps things cool — plants can sit close to bulbs without burn risk

That's the sort of maths worth paying attention to

Budget-conscious setups where ventilation isn't an afterthought but a core system

Canna Calmag Agent Size:1L especially during the nutrient-hungry peakCanna Calmag Agent Water Conditioner & Calcium Magnesium Supplement for Soft Water Growing Best for: Growers in soft water areas, RO water users, and anyone running coco or inert media who wants to prevent nutrient deficiencies Our thoughts Water quality varies wildly across the UK, and soft water can catch you out fast. Canna Calmag Agent is the straightforward fix it's a highly concentrated calcium and magnesium supplement that buffers soft water to