What could have caused my sulcata's RI??

Your Sulcata has a pretty sweet home. Sometimes RI problems come from being to cold, but that doesn't seem to be the case from what I see, or since the Sulcata is a desert species, maybe it is to wet other than that I do not know what to tell you. My Red foots have yet had any problems with RI. I hope your little guy gets better though..