ATB Aquarium Technik BURIAN
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Ca reactors

ATB Ca Reactor Small Size

519 € Your price incl. 21% VAT

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Catalogue number: 50001
Suitable for system volume up to:  
Low bio-load
12000 l
High bio-load
800 l
Performance: 25 W
Dimensions: 260 x 210 x 500
Weight: 6.50 kg
For tanks up to: 1500 l
Warranty (months): 24
Delivery time (days): 5
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ATB Ca Reactor Small Size

Introducing a completely new, third-generation ATB Calcium Reactor. This innovated range of our Ca reactors uses the Airstar return pump, renowned for its robustness and durability in environments, where abrasive substances such as sand or small stones are very common and can escape from the reaction vessel. Airstar pumps provide sufficient pressure that is necessary for the optimum functioning of calcium reactors. Our reactors are newly equipped with an easily removable and maintainable filter screen and a foam filter. The lid is designed to be easily removable, when replacing the media and cleaning the reactor, and to ensure sufficient tightness of the whole system.



  • Innovative design of the lid and reactor sieve for easy maintenance and ensuring watertightness
  • Foam filter insert
  • Powerful and durable Airstar pump
  • Input for pH probe in lid
  • Integrated bubble counter

Technical specifications

  • ATB Model ATB Ca Reactor Small Size art. No. 50001
  • Suitable for tanks up to 600 - 1500 l
  • Pump power 25 Watt
  • Pump output 3 000 l / h
  • Dimensions length 340 x Width 230 x Height 550 mm
  • Reaction media content 4.5 kg
  • Reactor weight 4,5 kg


We recommend

Medium for Calcium reactors Calcar 60. Particle size approx. 3 - 10 mm (19,- EUR / kg)

Calcium mixer 50006 ATB Kalkstirrer (275,- EUR)


Notes: Try to avoid dispensing high iodine content near the white PVC parts Never remove calcium water from the reactor directly to the pumps. Doing so may cause their damage, due to calcium deposition.

WATCH OUT for replicas of the original and patented ATB design.



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