3 special tubes designed for biofloc (BFT) aqauculture. BFT aquaculture needs special design aeration tubes to give continuous water movement along with high aeration. 

- AirOxi NC-16. Thin wall, light weight, low cost, non blocking. The oxygenation capacity is less because bubbles are big but the cost of the tube is less and the tube is non choking so the maintenance and cleaning required is very less.

- AirOxi XTRA  with bigger holes so the tubes dont get blocked. And the floc in the water ensures that the bubbles break up and provide good oxygenation

 - AirOxi Star with micro holes giving fine bubbles, but only in half the tube circuference so you get good pressure and movement, low blocking