We have a small 50 litre aquarium and have had a long airstone along the back of it but this one is so much nicer, the column of bubbles looks lovely although you can't really see the colours if the hood light is on. I will probably get another one and place them equally from the sides of the aquarium because it does look like it needs more. #RankBooster #Sponsored #Supmaker https://www.amazon.co.uk/Supmaker-Aquarium-Stone-Bubble-Changing/dp/B07FR624N2