Cal Aqua Labs Green Base XR

Cal Aqua Labs Green Base XR

  • Extended release, polymer-controlled nutrient granules
  • Nutrient loaded montmorillonite granules
  • High affinity, special-type activated carbon
  • Biobacter - essential bacteria
  • Contains humic and fulvic acids
Out of stock
We’ll inform you by e-mail when this item is back in stock again. Do you want us to send you an e-mail when this item is available again? Yes, please drop me a line
As a registered customer you can get notified via e-mail when that product is back in stock.

Sign in or
Express delivery possible
I want to order to 
€ 10,95 / l
incl. VAT
Item is now in your shopping cart!
View my cart

Item question

We’re here for you!

Please enter your question and e-mail and we’ll contact you as soon as possible. It usually takes us up to 24 hours during business days to respond.

Thank you for your question!

Thank you, we’ll get in touch!

Close window

You already sent us a question.

Please wait a few minutes


Green Base XR is a fertile base substrate designed specially for long-term planted tank setups. It is developed using advanced polymer-controlled release technology for underwater use, and provides sustained, active nutrient release underwater without nutrient spikes commonly seen in similar products. Its components work together synergistically to yield long-term lush, healthy plant growth with minimal maintenance.

What makes Green Base XR unique?

There is much more to Green Base XR than what meets the eye. All the components in Green Base XR are carefully chosen and work synergistically together to keep your substrate fertile longer and your plants healthier with minimal maintenance.

Advanced extended release, polymer-controlled nutrient granules

The heart of Green Base XR consists of polymer-controlled, nutrient granules which release macronutrients and trace elements at a consistent and controlled rate. The granules also contain humic and fulvic acids to help stabilize nutrients and enhance absorption by plants. The advanced polymer technology has been designed and tested to provide stable nutrient release rates underwater, thus avoiding large spikes leading to algae breaks and unsafe levels for inhabitants. Most importantly, the technology makes possible for year-long active nutrient release. Thus, keeping your substrate fertile significantly longer than other methods. The result is vibrant plant growth with less maintenance.

High porosity, high CEC, nutrient loaded montmorillonite granules

Unlike products that use inert pumice stones which itself has no significant nutrients or nutrient binding abilities, porous montmorillonite is rich in trace elements especially iron, manganese, and magnesium. With over 22 square meters of surface area per gram and high cationic exchange capacity, it serves as a highly efficient nutrient storage and exchange matrix in addition to providing large surface area for bacterial colonization. Healthy colonization of bacteria helps stabilize the ecosystem and breakdown wastes into nutrients that plants can absorb, thus providing a secondary method of fertilization. The granules have just the correct degree of hardness to prevent substrate compaction but yet still allow slow leaching of nutrients and minerals from inside the granules. It will not raise the total hardness or alkalinity, nor will it dissolve and cloud the water. Once loaded with nutrients, the granules act as an efficient secondary extended release matrix, slowly providing nutrients and minerals to plants overtime.

High affinity, special-type activated carbon

Not all activated carbon are the same. The type of raw material, the carbonization process, as well as the activation method all affect the purity, pore size, degree of affinity, as well as the type of molecules adsorbed. Unlike less expensive activated carbon, Green Base XR uses high-grade, steam-activated carbon and thus ensures that no harmful activation chemical residues are present. Moreover, we have selected the type that shows the highest affinity for dissolved humic and fulvic acids as well as ammonia. This thus acts as a secondary reservoir that locks in nutrients and slowly releasing them over time while keeping your aquarium water clean and clear.


Green Base XR contains essential bacteria to help jump-start the cycling process as well as prevent excessive spikes in ammonia level in newly setup aquariums. The microbes also help breakdown organic compounds into water-soluble nutrients that can be immediately used by plants or adsorbed and stored in activated carbon and montmorillonite granules for long term use.


We recommend that 1L of Green Base XR is used for every 40 liters (10 gallons) of water. More can be used for densely-planted tanks or aquariums with heavy root feeders such as Cryptocoryne or Echinodorus species.

  • Open bag and spread evenly onto bottom of aquarium. Do not wash or rinse before use.
  • Cover base layer completely with at least 1 inch (2.5 cm) of fine gravel or soil substrate.
  • Carefully add water, taking care not to disturb the substrate layer.

Cal Aqua Labs

Cal Aqua Labs

A stunning quality and innovative ideas around glassware articles for aquascapes have a name: Cal Aqua Labs. Lily pipes, permanent CO2 tests or inline diffusers are manufactured by highly experienced glass blowers. Their basic material is glass of the highest quality, whose clarity and stability is just stunning. The glassware is carefully manufactured by hand in keeping with very high quality standards. Every aquascape is embellished by these beautiful yet unobtrusive glassware products.

Those who do not want to compromise when it comes to glassware for aquascaping are exactly right to look at products by Cal Aqua Labs.

General information

Item no.
EAN 4250585202863
Weight 2,00 kg
Shipping weight 2,10 kg

Customers ask customers

You have questions about this product? Ask other customer or our support team about this product!

Customer reviews

This item has been rated 4.7 out of 5 stars
3 Reviews
Please sign in if you want to write a review. Sign in
5 Stars(2)
4 Stars(1)
3 Stars(0)
2 Stars(0)
1 Star(0)