70/30 Cal Mag'd Coco | Classic 70/30 Coco to Perlite Mix | Best For Intermediate Growers

Never buffer or rinse your coco again.

Perfect for startling seedlings, right out of the bag.

Introducing the only 70/30 coco-perlite blend 100% GUARANTEED to be freshly buffered for maximum cal-mag CEC and rinsed to an EC of below 0.4 for optimal seedling growth right when you open the bag, or you pay nothing.

Why the 70/30 blend matters:

Coco coir holds moisture and nutrients around the root zone like nothing else — but on its own, it holds too much water. That's where the 30% coarse perlite comes in. It creates air pockets throughout the medium so your roots get oxygen between feedings, excess water drains instead of sitting, and you can feed more aggressively without risking overwatering or root rot. It's the ratio commercial growers use because it gives you the best of both worlds: the water retention of coco with the drainage and aeration of perlite.

Why buffering matters:

Raw coco is loaded with sodium and potassium on its cation exchange sites. Those sites act like magnets — and they prefer calcium and magnesium. So when you pour nutrient solution through unbuffered coco, the medium grabs your cal-mag and locks it up, leaving your plants starving even though you're feeding them. That's why cal-mag deficiencies are the #1 problem in coco grows.

How we buffer:

Every batch of Cal Mag'd Coco goes through our proprietary dual-stage cation exchange saturation process — a concentrated two-pass soak using a 3:1 ratio of calcium nitrate and magnesium sulfate that fully loads those exchange sites before the coco ever reaches your grow room. Then we rinse it down to an EC of 0.4 or below, so there's no salt residue throwing off your first feeds.

The result: your nutrients go to your plants, not your medium. From day one.

What's in the bag:

• 70% Cal Mag'd Coco Coir
  
• 30% Coarse Perlite

What you get when you grow in Cal Mag'd Coco:

• No more cal-mag deficiency chasing — the exchange sites are already loaded
• No prep time — skip the soaking, rinsing, and buffering that eats up your first day
  
• Faster root development from the aeration and drainage of coarse perlite
• More of your nutrient dollar actually reaching your plants instead of being absorbed by the medium
• And much more!

100% 30 Day Money-Back Guarantee — If it doesn't perform, you pay nothing. No hoops, no hassle.

Every bag is made in small batches and buffered fresh. Once a batch sells out, the next one has to go through the full process again. Stock is limited — secure yours today before we're out.

Why buffering matters:

Commercial Orders (1,000L+)

Running a larger grow?

Get bulk pricing, pallet rates, and custom supply options.

📦 Ideal for 50+ plants or continuous cycles

👉 Contact: support@maxyieldlabs.com