Dumpy Frog Lesions

Question
My son has an aquarium equipped with a viquarium.  He keeps 3 dumpy frogs and goldfish in this tank.  About a month ago, he added a baby snapping turtle to keep over winter.  This turtle is tiny and keeps to a separate part of the tank.  Today we notice that 2 of the dumpy frogs have lesions on their backs.  One is oozing blood and black? liquid. The other frog has 3 small white colored lesions on its back.  We have had these frogs for several years.  They eat well, and are still eating.  Any suggestions?  Thank you.

Answer
Hi Bev, Those sound like bacterial lesions, frogs are somewhat prone to them due to the more permeable nature of their skin. I would really suggest a vet for systemic antibiotic treatment. The lesions could very well be developing from the inside out. What I mean is that it may be a systemic septicemia that is causing the lesions to develop rather then them being localized skin infections.  Frogs are very dependent on clean water and turtles (and goldfish) both produce large amounts of waste. Your filtration system (both physical and biological) and water change schedule may not have been sufficienct to keep the bacterial count down once the turtle was added. Your frogs may also have been particularly susceptible to the type of bacteria that the snapper carried.
If you can I would suggest you remove the frogs to  a separate  enclosure  with just  newspaper, change their water source daily. This enclosure can stay fairly dry. Dumpy's tolerate dry conditions better then other frogs and dryness helps to limit problems with bacteria.     Also increase their heat, give them an area in the enclosure in the 85 - 90 F range. This will naturally boost their own immune system. Dabbing a bit of polysporin or similar on the lesions wouldn't hurt but try to keep handling to a minimum.