starting at 7,90
€ 79,00 / kg
In stock
  • Re-mineralising salt mixture for increasing carbonate hardness
  • Recommended for shrimp, crayfish and East Africa tanks
  • For RO water and rainwater
starting at 14,90
€ 149,00 / kg
In stock
  • Re-mineralising salt mixture for increasing total hardness
  • Particularly recommended for shrimp, crayfish and Malawi cichlid tanks
  • For RO water and rainwater
starting at 5,90
€ 118,00 / l
In stock
  • For calibration of pH combination electrodes
  • green colored
starting at 5,90
€ 118,00 / l
In stock
  • For calibration of pH combination electrodes
  • red colored
starting at 5,90
€ 118,00 / l
In stock
  • For calibration of pH combination electrodes
  • blue colored
In stock
  • Phosphat-Slow-release fertiliser
  • Sealed in a plastic net, ready for use
  • Releases controlled amounts of fertiliser to the water
  • Ideal if you are away from home
starting at 11,90
€ 23,80 / l / susp.
In stock
  • Powder for refilling KramerDrak by DRAK
  • Just mix with water to make ready-for-use fertiliser
  • When stored dry it is almost indefinitely durable
starting at 9,90
€ 19,80 / l / susp.
In stock
  • Powder for refilling Ferrdrakon by DRAK
  • Just mix with water to make ready-for-use fertiliser
  • When stored dry it is almost indefinitely durable
DRAK - aquaristics products from own research and production!

The man behind DRAK is the aquaristics expert and chemist Dr. Andreas Kremser. As a manufacturer of products for water care, DRAK also offers aquarium fertilizers and epsom salts for water treatment in aquariums. Ferrdrakon is recommended as a classic iron complete fertilizer, while KramerDrak is more suitable for heavily planted aquariums with correspondingly strong lighting. Various macronutrients are also available as single component fertilizers.
A popular hardening salt is Duradrakon, for example, which specifically increases both the carbonate and total hardness. DRAK also offers useful pH buffer solutions for calibrating pH electrodes and long-term fertilizers in solid form.