The Tetra Active Substrate is a natural product which provides a suitable medium for aquarium plants to grow in. The large surface and porous nature of the clay granules offers several advantages compared to traditional gravels.

Some of the benefits are:

  • Reduces organic water pollution and helps cycling process
  • Avoids soil compaction
  • Benefits fast rooting of plants
  • Provides plant roots with nutrients
  • Rounded shape of gravel avoids damage to fish
  • Suitable for all freshwater aquariums

A 6L bag is suitable for a 60L tank.

Directions for use: Fill your aquarium with a 4cm high layer of this substrate. For even better plant growth, we recommend a 2-4cm layer of Tetra Complete Substrate.

Tip: Although plants absorb through their roots, it's essential that you offer a liquid nutrient so plants can absorb through their leaves as well (if you're sticking with the Tetra brand then use Tetra Plantamin).

Delivery Information

Fast Free UK Delivery on orders over £60.00.*
Smaller orders under £60.00 are subject to a £4.95 delivery charge. Delivery will typically be made within 2 - 3 working days but may be extended during peak times.

We Can Offer Next Day Delivery for £7.95*
To meet our deadline for this service you must order before 11.00am to ensure delivery for the next working day. This excludes weekends and bank holidays.

*Extra charges or restrictions will apply to certain UK postcodes. These include parts of Scotland, The Highlands, Northern Ireland and offshore Isles. Please note Next Day delivery is not available to these locations. Please click here for a full list of postcode exclusions and contact us today for a personalised quote. 

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