Soil, in addition to the decorative effect, occupies a key place in the life of the inhabitants of the aquarium. It serves not only as a substrate for planting plants. In its thickness live millions of bacteria and unicellular living organisms that process organic matter that has accumulated there. In turn, for the normal functioning of bacteria, good soil flow is needed. What soil is better? Let's get it right.
All soils can be divided into two large groups - artificial and natural. The first in a wide assortment are sold in pet stores. The second most often you can get yourself (of course, if you do not live at the North Pole).
Artificial soils are good in that they are already ready for use. No operations are necessary with them, unless you just rinse. They, being made of special materials, do not add you the hassle of changing the composition of water to acidic or alkaline.
Their use is most rational in those aquariums where you want to emphasize the coloring features of a particular fish species. For example, catfish of the Corridoras will look very impressive with their albino color on tar-black soil. Due to the wide color palette, you can choose such shades of soil that will be in harmony with the type of fish you need.
The advantage of natural soil is that you can pick it yourself as much as you need. Its main advantage is naturalness and naturalness. It is natural soil that can give your aquarium that special originality that is characteristic of a natural reservoir. Most often, the color of the soil varies from gray - when lake sand is used, to light brown - when river sand is used.
The most acceptable option is coarse river sand, having a diameter of grains of sand from 1.5 to 3 mm. It is in this soil that enough oxygen will flow to the bacteria and plant roots. Therefore, gas contamination of the soil with hydrogen sulfide will be minimized.
By the way, there you can also pick pebbles on the river. But be careful, do not mistake limestone formations. They look like rolled pebbles with a white matte finish. But once in the water, they begin to bubble. Also, various iron oxides occur in rivers. They look like unremarkable brown stones. They will only show themselves when washing the aquarium - no matter how much you wash them, soak the soil, the water will always have a cloudy brown color. And therefore do not be too lazy to sort through the soil manually. Yes, the occupation is dreary. But believe me, then it will pay off handsomely.
The selected soil must be washed. Usually 4 to 5 soaks are enough. Then the soil should be boiled for 10 to 15 minutes. This will destroy all dangerous bacteria from a natural reservoir, protecting your fish from disease. Do the same operations with pebbles.
All. The work is done. Feel free to fill the soil into the aquarium, not being afraid to bring any infection there.