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How to reduce the water hardness in the aquarium

maintenance, care, compatibility

❶ How to reduce the rigidity in the aquarium :: Equipment and accessories

In urban water supply, the hardness indicator of the water is quite high, so often the aquarist needs to lower it. The inhabitants of the aquarium feel good in water with a level of hardness from 3 to 15 degrees.

Some species of snails cannot live in soft water, as their shells begin to collapse. Viviparsing fish should be kept in water with stiffness about 10 degrees. For neon fish, the hardness indicator of the water should not exceed 6 degrees.

Sagittaria and water fern germinate well in water with stiffness 10-14 degrees, and uviranda dies even at 5 degrees.

1. Do not forget to take into account that the level of water hardness varies depending on the season. Many people know that boiling well reduces this level, but this applies only to the temporal component of rigidity.

In steady seasons – by the end of summer and by the end of winter – it increases, and the rains and floods lead to water softening. Therefore, in spring, fish are prepared for spawning and plants begin to grow.

2. Perfectly soften water plants such as elodea, algae hara, hornomy. Their leaves and stems are usually covered with a crust, which is a precipitate of calcium salts.

Plants do not absorb carbon dioxide at night, and in the process of breathing living beings in a reservoir it accumulates in aquarium, as a result, water hardness increases. If there are sharp fluctuations in the level of hardness at night and during the day due to the presence of a large number of these plants, it can kill all animals in just one night: they will simply suffocate.

That is why the “blooming” of water is a very unpleasant and dangerous phenomenon in aquarium. Remember that this can start in brightly lit aquariums with rotting food residues.

Adding distilled water will help reduce the constant component of water hardness.

3. Besides the usual boiling, there is another method of obtaining water with stiffness, whose level is close to zero. To do this, it is necessary to fix a glass plate in front of the nose of the boiling kettle. At its bottom edge, install a container to collect the condensed vapors.

The water obtained in the tank in this way will have a hardness close to zero.

4. Water hardness can be reduced by simple freezing. Pour 3/4 of water into an empty polyethylene bottle, close and place in the freezer.

When about half of the water freezes, remove the container from the refrigerator. After that, carefully cut the bottle and remove the frozen part of the water.

This piece of ice, melted, will become water with a very low level of hardness.

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