Epsom salt bath for Betta fish

Epsom salt is a crystal clear salt.
Epsom salt is Magnicium Sulphate
It is used as laxative for livestock.
It acts as laxative for fish aslo
Constipation is a common ailment in Betta fish
Two to three baths relieve Betta fish
Add one teaspoon of Epsom salt per 2 liters of water.
Shift the Betta fish and wait for 15 minutes
Epsom salt is safe than Rock salt
Rock salt is Sodium Chloride