your enemy, don't know you you, i hate you. aquarium uses stone aerator, bubble pump, hydroponic oxygen supply, fish

3 cm diameter fish tank aerator aeration bubble pump pond oxygen hydroponic fish tank gas stone characteristic: ozone aerated stone, stone bubble, super hard gold steel sand, high temperature sintering, good gas diffusion, good filtration capacity, ozone resistance, corrosion resistance. it increases oxygen levels, reduces carbon dioxide, increases ph, and creates water flow it is an important tool for fish to survive in the process of respiration. durable, reusable and washable. when conn