Most of the aquaculture animals are nocturnal in habit, during the daytime they bury themselves beneath the mud. The abnormal condition of the pond bottom with depleted Oxygen conditions results in restless behaviour in shrimps and fish that forces them to reach the edges of the pond during daytime. Prevalence of such conditions for a longer duration leads to the death of shrimps. Deodorizers and oxygen generators play a major role to protect such condition. Prevalent such conditions, quality and stable planktonic bloom is also very essential.