Posted: Wed Jan 31, 2007 2:48 am
RES always need access to UVB exposure, 1-2 weeks without UVB is fine, but afterwards, you really need UVB on your turtles for them to remain healthy, or else things such as shell rot and other disorders and/or deformities can (and probably will, given time) occur.
Even though it seems that your RES may seem to be able to live without UVB, there are things that we cannot see, and they may be growing a problem within them, nutrient-wise. Best not to risk it.
All hatchlings or young young RES generally exhibit green shells, either bright light green, or darker green. As they age and mature, the shells get duller until they are just a brown colour when a RES reaches adulthood. Generally turtle shells start to dull when your RES grows 3 inches up and onwards.
Only if your RES is still relatively young and small and should its shell be abnormally dull/brown (such as spots or blotches), would it not be normal. If that is the case, I'd advise a close eye on your RES, it may possibly have a sickness going on and should be consulted by a vet.
BEST WAY TO KNOW: Take a clear picture of your RES' shell when dry and post it here, many people will be able to tell you whether it is normal or abnormal.
Hey hey hey.