my sister got a tiger in her crawlspace-she kept telling me he was in a water resiviour-its 3ft across but only 2 inches deep, he couldnt find his way out because it had steep sides. my brother in law said it was above freezing down there and i didnt know how to get there from the house so when i dropped by at halloween i didnt look for it, and my brother in law didnt feel like getting it out and setting it aside for me. my sister was mentioning it was looking thinner-i thought since it was active then some food down there would be active too-all that ever seemed to fall into that basin was a mouse that drowned-and they removed that-but not the tiger. at christmas my sister pointed out i should go and get it, so my brother in law showed me how to get there-he looked in and said-its dead......so here is my point-leaving it alone is risky, happierheart: you mention the dog and also its active-both of these are potentially dangerous. if its active but it doesnt eat then it may starve before spring, and that is providing it has access to enough moisture to keep it alive. debra-if the basement is damp enough and they arent at risk of wandering into a finished area then you may do ok with a shallow dish of water available so they can get some more moisture-if you fee its easier to take them out and put them in a tank-then do so, use the caresheets available at caudata culture-most ambystomas require similar conditions, so the tiger sal care sheet will do.