Seachem Replenish 250ml

RM 20.00
Seachem Replenish 250ml Ratings: 0 - 0 votes

  • Restore and maintain GH
  •  Replenishes necessary minerals removed by RO/DI
  •  Necessary to prevent osmotic stress and osmotic shock


Replenish™ is a proprietary blend of salts designed to  replenish physiologically relevant minerals that are removed by reverse  osmosis or deionizing filtration. Replenish™ restores General Hardness  (GH) using a balanced blend of both “soft” (sodium, potassium) and  “hard” (calcium, magnesium) salts. Restoration of mineral content is  essential since a complete lack of minerals will result in osmotic  stress in those species whose osmoregulation systems are adapted to a  mineralized environment. Severe osmotic stress can result in osmotic  shock which will lead to rapid death.


Osmotic Stress and Shock


Occurs when fish are kept in water with inadequate  mineral levels (too high or too low). Osmotic stress affects more  seriously fish whose natural habitat is rich in minerals and who are  kept in an aquarium with a low mineral level, as osmotic gradients  (difference) between the internal fluids of the fish and its surrounding  environment (water) increase. Such fish have a less effective  osmoregulation than those who are physiologically adapted to water with a  low mineral level. That is why they are not able to cope with  overloading of osmoregulation.


Osmotic shock can be a result of a breakdown in  osmoregulation due to inappropriate chemical composition of the water.  It can also be caused by increased permeability of the skin resulting  from a disease or trauma. Osmoregulation enables fish to maintain the  proper balance of salt and water in the body, which is necessary to  create optimal conditions for various physiological and biochemical  processes. In all fish species osmoregulation developed in a way that  enabled them to maintain the proper balance of salt and water in the  water with chemical composition found in their natural habitat. If  osmoregulation is disturbed due to adverse conditions (osmotic stress)  or a sudden change in the chemical composition of water (osmotic shock),  fish might not be able to physiologically cope with it.  Chronic osmotic stress can eventually result in fish’s death  and osmotic shock can cause death very quickly.




Add 5 mL (1 capful) Replenish™ to 40 L (10 US gallons)  to raise GH by 1 meq/L (2.8 dGH). Recommended restoration level into DI  or RO water is 1-2 meq/L which is 5 mL per each 20-40 L (5-10 US  gallons.)

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