Cal Aqua Labs Substrex

Cal Aqua Labs Substrex

  • Improves water quality and clarity
  • Provides long-term nutrients for plant growth
  • Prolongs substrate lifetime
  • Reduces long-term maintenance
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SUBSTREX is a novel double-action substrate additive that provides long-term nutrients to the substrate and reduces clouding of the water caused by agitation of substrate dust und debris during planting and maintenance.

As planted aquariums age, substrates undergo two noticable changes. First, available nutrients within the substrate become depleted by growing plants. If this is left untreated, it will lead to slow, unhealthy plant growth. Second, debris from plants and inhabitants as well as dust from substrate particles often collect inside the substrate layer. If the substrate layer is disturbed either through planting, uprooting plants, or simply during routine maintenance, it can lead to prolonged clouding of the water.

SUBSTREX was developed to specially adress these two points. It builds up the fertility of the substrate system and enriches the substrate with slow-release nutrients. Made from novel gel-coated activated carbon, it forms a diffused gel matrix that readily binds to nutrients, dust particles of soil, fish waste, and debris creating stabilized structures that quickly settle - reducing their ability to cloud the water. As the tank matures, the nutrients slowly become available and keep the substrate fertile for long-term growth.


  • Improve water quality and clarity
  • Provide long-term nutrients for plant growth
  • Prolong substrate lifetime
  • Reduce long-term maintenance


Spread 1 leveled spoonful (spoon provided) evenly on top of Green Base XR or on bottom of aquarium for every 1 ft2 (30 cm x 30 cm) area. Cover evenly with substrate. Use only as directed. Safe for fish and shrimps.

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.
Weight 0,20 kg
Shipping weight 0,20 kg

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This item has been rated 4.5 out of 5 stars
2 Reviews
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Cal Aqua Labs Substrex
12th January

Same like Cal Aqua Labs Multi-R 200 now i see good results all plants and scape enjoy ! Aquasabi top fast delivery