Mace Arnold wrote: > (snip) > > Any brand names for straight sodium thiosulfate that can > be mail ordered. > Sodium thiosulfate can be mail ordered (no brand) from Aquatic Eco-Systems. Part No.ST1A, 5#, $10.15 + S&H (mix 4oz. STS to one gal. water - dose at 5 ml per 10 gal. water or 1 cup per 475 gal water). Phone: 800/422-3939, E-mail: <aes at aquatic-eco_com> Regards, Spike Cover