Mydilab Betta Relax is made of 100% natural plant extract which have the anti-fungal and anti-bacteria properties. Due to its� nature goodness, the tannin released help creates a natural stained black water for Betta to grow healthy and away from illnesses. The natural property of Mydilab Betta Relax will helps enhance the natural colour of Betta and speeds up the recovery rate after a battle and inducing the spawning in breeding tank.