My Saum is constipated. Two days ago I dosed his tank with 1 tablespoon of Epsom Salt per 5 gallons. This has not had the desired effect as of yet. I know that I used a similar method when my Flowerhorn had the same issue and it worked beautifully. The things I cant remember is how long it took to work and if it doesn't work after so long should I add more Epsom?