Many plants, high temperatures or the use of medicines and anti-algae agents can quickly become a problem. Especially in summer, high temperatures can lead to the oxygen content in the aquarium dropping alarmingly. Anti-algae agents and medicines can also reduce the O2 content in the water. Biologist Heiko Blessin explains all the ways you can increase the oxygen content in your aquarium
Find out more about "Oxygen deficiency in the morning" on the myJBL blog: Lack of oxygen in the morning
You’ll find all you need to know about air and diaphragm pumps in the Themeworld Aquarium: Air pumps
Buy the products you need to monitor and produce oxygen and/or find additional information here: Aeration