Sodium thiosulfate, also called hypo, is a kind of crystalline substance, soluble in water. It has a strong reducing ability, which can improve water quality and detoxicate. In aquaculture, farmers often use this substance.
Detoxification
When dissolved in pond water, hypo can reduce the toxicity of cyanide, exchange ions in the water and alleviate heavy metal pollution. After the residual chlorine is removed from the water, the chlorine can be converted to hydrochloric acid. So if there are ponds where chlorine has been used, it is an effective way to use hypo to remove the toxicity of free chlorine from water. Hypo also releases sulfur atoms in the water, which acts as a disinfectant. The toxicity of organophosphates in these insecticides can be reduced by its reduction mechanism after applying insecticides.
PH stability, water purification, cooling
Regular use of hypo can increase the total alkalinity of the water and make the water more stable. Because it has the chemical properties of alkali weak acid salt and alkaline hydrolysis, it will not reduce the PH value of the water after use, but will increase the PH value. Hypo also has a very strong adsorption function, can play the effect of water purification. When When the weather is hot, it can be used to cool the bottom of the shrimp and crab pond to reduce the swimming problem caused by bottom heat and avoid the phenomenon of hypoxia caused by bottom heat.
Improving the bottom quality to avoid the excess ammonia nitrogen
In the summer, some shrimp and crabs will be killed or even drowned, mostly due to environmental degradation, oxygen deprivation. In aquaculture, with hypo and persulfuric acid hydrogen together, we can change the bottom quality of pond, and then add a few oxygen pieces. The phenomenon of ammonia nitrogen exceeds the limit and smelly water which is due to the high temperature will not appear in the bottom of the pond.
