Parasitic infection can cause over product of the slime coat and bloating I think it would be worth while to keep treating salt I would also treat ESHA Gdex active ingredient is praziquantel that is available in the UK that will treat any possible parasitic infection you get sera bactopur direct tables from Amazon or eBay active ingredient is nifurpirinol is a broad spectrum antibiotic treatment just done get it confused with sera bactopur active ingredient is acriflavine and Methylene blue or kanaplex for future use it does take a couple of weeks get here I make sure I always have some on hand you never no when you're might need @Ron.h