Vital balance in the aquarium
In an aquarium packed with ‘life’ it is perfectly normal for waste products to gradually collect and important substances dissolved in the water to be used up. However, this also means that even with an intact ecosystem, the water parameters in an aquarium can become unbalanced: for example, if the waste products such as fish excrement or even plant or food residues get out of hand or the fish consume too many useful substances (e.g. minerals). This can result in cloudy water, fish that become ill and yellow plants. It is therefore even more important to keep the water quality and water parameters in the aquarium stable at all times. Partial water changes play a central part in this.