Tropic 70/30 Coco Mix 50 Litres

Tropic 70/30 Coco Mix 50L – Buffered Coco & Perlite Growing Medium

Tropic 70/30 Coco Mix is a ready-to-use 70% coco coir and 30% perlite growing medium, combining the moisture retention of premium coco with the improved drainage and root-zone aeration of perlite.

Made for growers who want a reliable 70/30 coco perlite mix without paying premium-brand prices, Tropic Cocomix uses washed and buffered coco and comes ready mixed in a 50-litre bag. The open structure makes it an excellent choice for both hand watering and automated dripper systems.

With a pH of 5.8, EC of 0.8 and RHP approval, Tropic gives you a consistent coco growing medium that can be used from smaller hand-watered setups right through to larger multi-pot irrigation systems.

Key Benefits

• 70% coco / 30% perlite – a popular balance of moisture retention, drainage and aeration.
• Washed and buffered coco coir – prepared for a more consistent root-zone environment.
• 30% perlite – helps keep the substrate open, airy and free draining.
• Excellent root-zone aeration – maintains air spaces around the roots even with regular irrigation.
• Good moisture retention – coco holds useful moisture while excess nutrient solution can drain away.
• RHP approved – produced to recognised horticultural substrate standards.
• Ready mixed – no need to buy coco and perlite separately and mix your own 70/30 ratio.
• pH 5.8 – well suited to coco-based nutrient programmes.
• EC 0.8 – gives you a known starting point when building your feeding programme.
• Suitable for hand watering and drippers – ideal for conventional coco pots and automated irrigation.
• 50-litre bag – practical for individual growers and cost-effective for larger setups.
• Produced in the Netherlands.

Why Use a 70/30 Coco Perlite Mix?

A 70/30 coco perlite mix combines two media that complement each other extremely well.

Coco coir holds moisture and nutrient solution evenly throughout the root zone, while the added perlite creates additional air spaces and allows excess solution to drain more freely.

Compared with using pure coco, the 30% perlite creates a lighter, more open substrate that's particularly useful when plants are being irrigated frequently.

This helps maintain a healthy balance of water and oxygen around the roots, giving the root system the environment it needs for strong development and efficient nutrient uptake.

Better Drainage & Root-Zone Aeration

One of the biggest reasons growers choose coco and perlite is drainage.

Regular feeding is a major advantage of growing in coco, but the root zone still needs enough oxygen between irrigations. Perlite helps maintain open spaces throughout the substrate instead of allowing the media to become overly dense.

That makes Tropic 70/30 particularly well suited to growers using frequent irrigation or automated dripper systems, where nutrient solution needs to move efficiently through the pot and excess run-off needs to escape.

Washed, Buffered & RHP Approved Coco

The quality and preparation of coco are just as important as the ratio itself.

Tropic uses washed and buffered coco coir to provide a more dependable starting medium straight from the bag.

Buffering is particularly important with coco because of the way coco naturally interacts with calcium, magnesium and other nutrient ions. Starting with properly prepared coco makes it easier to maintain a consistent feeding programme throughout the crop cycle.

The substrate is also RHP approved, providing additional reassurance over the quality and consistency of the growing medium.

Ready-Mixed Coco & Perlite

You can make a 70/30 coco mix yourself, but buying separate bags means measuring and mixing the media before you can start filling pots.

Tropic 70/30 is already blended for you.

Simply loosen the media before use and fill your containers. This is particularly useful when you're filling multiple pots because the correct coco-to-perlite ratio is already distributed throughout the bag.

Ideal for Hand Watering & Dripper Systems

Tropic 70/30 can be used with both hand-watered coco setups and automated dripper systems.

When hand watering, the coco retains moisture between feeds while the perlite encourages excess solution to drain away.

With drippers, the open 70/30 structure lends itself particularly well to regular irrigation. Nutrient solution can move through the root zone while excess run-off drains from the bottom of the container.

Irrigation frequency should always be adjusted according to plant size, pot size, environment and the amount of water the plants are using.

Pair Tropic 70/30 with a Quality Coco Nutrient

Tropic 70/30 provides the growing medium, but your plants will still need a complete coco-specific nutrient programme.

For a complete setup, we'd pair it with a trusted nutrient range such as the Shogun Fertilisers Full Coco Nutrient Kit.

The Shogun kit is built around Samurai Coco A&B and gives you the base nutrients and additives needed to build a complete feeding programme for plants growing in coco.

Using a dedicated coco nutrient alongside a properly buffered 70/30 medium gives you much greater control over what is being supplied to the root zone throughout the grow.

How to Use Tropic 70/30 Coco Mix

1. Loosen the media: Break up any compressed areas and distribute the coco and perlite evenly before filling your pots.
2. Fill your containers: Add the media without heavily compressing it. Keeping the structure open is one of the main advantages of using a coco and perlite blend.
3. Prepare the root zone: Thoroughly wet the media with an appropriate coco nutrient solution before planting.
4. Plant as normal: Position the plant and gently settle the substrate around the root zone.
5. Feed with a coco nutrient: Use a suitable coco-specific feeding programme such as Shogun Samurai Coco A&B.
6. Monitor pH and EC: Check your nutrient solution regularly and follow the recommendations for the nutrient range you're using.
7. Allow excess solution to drain: Make sure your containers have adequate drainage and aren't left standing in old run-off.

Our Take

For a straightforward 70/30 coco and perlite growing medium, Tropic gets the important things right without pushing the price up unnecessarily.

You get washed and buffered coco, plenty of perlite, RHP approval and a ready-made blend that's easy to use with either hand watering or drippers.

It's particularly good value when you're filling several pots. Instead of buying premium coco and a separate bag of perlite, measuring everything out and mixing it yourself, you can open a 50L bag and get straight on with the setup.

For a standard coco grow where you want good drainage, plenty of root-zone aeration and control over your feeding programme, this is exactly the sort of media we'd recommend.

Tech Specs

• Product: Tropic 70/30 Coco Mix
• Bag size: 50 litres
• Growing medium: Coco coir and perlite
• Mix ratio: 70% coco coir / 30% perlite
• Coco: Washed and buffered
• Certification: RHP approved
• pH: 5.8
• EC: 0.8
• Suitable for: Hand watering and automated dripper systems
• Country of production: Netherlands

Explore the Full Tropic Range

Tropic is built around giving growers dependable growing media at sensible prices. If you want to keep the same quality and value across your setup, take a look at the rest of the Tropic growing media range, including Tropic 100% Coco Pro.

Top Tip: Don't compact the media heavily when filling your pots. The open structure is one of the main reasons for choosing a 70/30 coco perlite mix, so keep it loose and let the coco and perlite maintain plenty of space for water, drainage and oxygen around the root zone.