I very much appreciate all the advise. I also checked ATP to see what folks had posted on the topic. She broke off one more nail a few days ago and had not been housed with the male Spotted or the large crayfish since I originally noticed the breakage. This time I actually saw the nail broken/hanging before it fell off. I'm thinking JGsav is on to something with the fungus. It sounds logical to me and at the very least it can't be helping things.

I did notice the blueish tint to her skin and figured she might have some mild fungus. She has been basking quite a bit the last few days and it has improved... but then she seems to go back to her more aquatic habits and the condition worsens again (this has been going on for a few weeks). There is a land portion in the enclosure, but she doesn't really use it yet. I've been taking both her and her mate outside in a plastic tub (separately now) for the last couple months. I usually keep a little water in the tub and it is half covered with moist long-fiber live sphagnum, to help buffer them from potentially overheating. I am planning now to get a second plastic tub that I will use strictly for dry-docking. I will also pick up some Betadine to swab her with prior to dry-docking.

I DO have lots of driftwood in both of their enclosures which could be harboring excessive fungal populations. I've ordered some additional filtration equipment to try and improve water quality. I also try to bake (YES, in the oven) the driftwood occasionally to keep it "cleaner." Incidentally, the crayfish (small ones now) like to scrape it clean (fun to watch).

Ken, I have played with a couple methods for lowering pH including adding Pin Oak acorns to the tank and soaking a sphagnum filled sock in the replacement water, but I think I might give the Blackwater Extract product a try. What would be a good level for keeping pathogens in check (i.e. How low should I go?)?

I have lots of live plants (Duckweed, Coontail, Bladderwort) to help absorb nutrients and provide a potential snack. I would be a bit concerned about adding pond water... for fear of introducing more harmful microbes than beneficial ones, but perhaps its worth a try. I'm sure some of both are introduced with the vegetation anyway.

I just checked the temp of her basking spot (spotlight bulb) and its at ~94.5F at its closest location (she has the option of being further away). She doesn't usually bask there though. The UVB bulbs could probably stand to be a couple inches closer, but they've both been getting outside time. I'll be more concerned come fall/winter time (in Ohio).

I suppose I could go with a completely sterile environment? No driftwood, no substrate, feeding outside the tank, etc... but for me that partially defeats the purpose of keeping turtles and would seem to diminish their quality of life.

I'll keep you posted... and I'm always open to further suggestions! Thanks again.

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