2HR Aquarist APT F/FixLite

2HR Aquarist APT F/FixLite

  • Combats red, green and filamentous algae
  • Gentle on aquatic plants
  • Biodegradable
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APT F/FixLite from 2HR Aquarist is a gentle solution to unwanted algae in freshwater aquariums. This specially developed formula is based on a proprietary blend of carboxylic acids that selectively disrupt the life processes in algae cells without harming aquatic plants. Thanks to the thicker cuticle layer that aquatic plants possess, they remain unaffected by the treatment, while algae are effectively inhibited.
The active ingredients in APT F/FixLite react quickly with algae cells and ensure rapid inhibition of their growth. After application, the active components are completely broken down by the natural biological microorganisms in the aquarium. This prevents bioaccumulation in the aquarium ecosystem and ensures the long-term health and safety of the aquatic habitat. Specially developed for mosses, liverworts (Riccardia, Riccia, etc.), Vallisneria (ribbon grass) and more sensitive plants.


  • Supports the elimination of algae in the aquarium
  • Particularly gentle on aquatic plants
  • Spot dosing possible on healthy and vigorous plants
  • Also for wood and stones in the aquarium
  • Follow the application instructions


Pause filter during application.
Spot dosing for individual areas up to 1ml per 10 l every 24 hours.
For a larger area, the limit of 1ml per 10 litres may be exceeded. Distribute a dose to the affected areas and then perform a 50% water change.

2HR Aquarist

2HR Aquarist

The 2HR Aquarist is a young company with its roots in Singapore. The founders around the passionate aquascaper Dennis Wong, all aquaristic enthusiasts themselves, see aquascaping as a mixture of art and research. The development of the products, therefore, corresponds to a scientific approach in which empirical tests are used to create foundations and facts. The innovative APT fertilizer series from The 2HR Aquarist covers the most common scenarios that can arise in aquascaping and places healthy plants and balance in the aquarium in prospect.

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