An integral attribute of any owner of an aquarium is a siphon for cleaning the soil.
The siphon is included in the list of equipment that every aquarist should have. This is a kind of vacuum cleaner for the aquarium. Over time, the remains of uneaten food, the waste products of aquarium fish and rotting particles of aquarium plants accumulate in the ground. The soil is silted up and needs to be cleaned periodically. If this is not done, the soil will begin to sour and ammonia and hydrogen sulfide will accumulate in it, which can lead to the death of aquarium fish.
Previously, some aquarists resorted to extracting soil from the aquarium with further flushing. This negatively affects the life of beneficial bacteria in the soil and the biological balance of the aquarium as a whole.
An aquarium siphon comes to the rescue to clean the soil. This device is of the simplest design - a hose with a wide tube at the end. A wide tube is put into the ground from the other end, and the water, along with all the dirt waste, begins to merge into a bucket along the reverse draft. If the aquarium and the soil inside it seem clean, then when you siphon the soil you will be very surprised at the amount of dirt in the aquarium soil.