All sounds good , only thing I'd change given he's not feeding well is the warm water part . I have a couple who wouldn't bother anything warmed in water and I'm guessing it was because the smell / odour of the rodent was simply washed away - some are ultra finicky . I thaw on a plate on the boiler or on a heat mat then boost with a blast from hairdryer . See as you in low light and evening .
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