Conflicting info taken from another website


Red-leg:
The most infamous frog disease of captive frogs, Red-leg is usually caused by the parasite Aeromonas hydrophyla. It appears as a reddening of the skin, particularly on the belly and underside of the thighs, (not to be confused with the natural colorings of some species of frogs!) Frogs that get red-leg tend to act apathetic and lazy. This is a really lethal disease so isolate the affected frog(s) right away! Sometimes in the case of newly imported animals it is more likely due to abrasions caused by dry packing, like cardboard. In the latter case, the only treatment necessary is to correct the cause and keep the affected animal(s) in an incredibly clean cage for a few days. Otherwise, redleg caught in it's early stages can sometimes be treated by bathing the frog in a Sulfamethiazine bath (15 ml for every 10 l water) daily for 2 weeks, or a 2% solution of copper sulfate or potassium permanganate for the same period. If it shows no signs of getting better after the first week, sometimes you can treat them with the use of an antibiotic like tetracycline,