Review on 🌊 VIVOSUN 5" Hydroponics Aquarium Tank Pump Air Stone Disc with Shell by Heather Nelson

Ideal for brewing compost tea (microbial tea). I use 7 gallon buckets and the 4 inch air stone seems to fit perfectly without kinking the air hose. Too large a diameter would cause the air hose to run at a 90 degree angle and restrict some of the airflow capacity. These air stones are fairly easy to clean and can be used for a variety of purposes such as hydroponics, aquaponics or just the aquarium in general. We will definitely buy more!