The basic equipment for an aquarium includes an aquarium filter that purifies the water. A heating rod is necessary for aquariums containing tropical ornamental fish that are used to temperatures above 22 °C. An aquarium also needs lighting. Firstly, to ensure the day-night rhythm and secondly, to provide the aquarium plants with light to grow. 
Other technology for an aquarium includes the CO₂ system, bottom flooding (bottom heating), cooling units for axolotl aquariums, automatic feeders and, if you prefer, you can also have all the plant fertilisation controlled automat.