PondStabil is a natural product that affects the carbonate hardness (CH) of water in water reservoirs, ornamental ponds, and swimming ponds. It increases the CH value of pond water and the pH level, and maintains these parameters. This product provides optimal conditions for the development of beneficial microorganisms.

PondStabil Mixture:

  1. 100% ecological;
  2. Reduces pH fluctuations in the water;
  3. Increase the CH value of the water;
  4. Ensures optimal conditions for the development of microorganisms;
  5. Universal – it can be used in all types of water reservoirs;
  6. Fast acting with immediatly visible effects;
  7. Safe and natural for organisms;
  8. No overdosing risks from using the mixture;
  9. Easy to use – dosing can be adapted for every type of water reservoir.

Applications: fish ponds, swimming ponds, natural ponds, and freshwater aquariums.


Application method: Determine the CH value of the water reservoir. If the CH value is less than 100 mg/l (5.5 CH), PondStabil should be added until the value is greater than 100 mg/l. The optimal level of calcium carbonate in pond water is 120 mg/l (6.7 CH).


Storage: Store in a dark cool place at above freezing temperatures. This is a natural product, and sediment may form at the bottom of the bottle.
How and when to use this product – calendar with application dates


PondStabil is a natural source of bicarbonate ions which are responsible for keeping the pH value constant. This mixture also provides a stable environment for bacterial activity in pond water.

PondStabil works naturally to gently increase the CH value of the pond water. It helps to maintain a constant CH value each time a reservoir, ornamental pond, or swimming pond is filled with new water.

PondStabil is best applied near a pump or circulation system to ensure that the mixture is properly diffused in the water. You can also spread it evenly over the entire surface of the pond.

Regular use of PondStabil helps to stabilize the water’s CH value, which helps to create the right conditions for biological filtration to work and has a positive effect on the well-being of fish.

This mixture works effectively in all conditions, and helps damaged aquatic plants and weakened fish recover.