If you are going to do a full clean out of the enclosure and can rinse the glass, a bit of white vinegar is all you'd need to get rid of the water spots. (Put some on a towel and wipe everything down, rinse, rinse, rinse... do not use with other chemicals like bleach.)
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0.1 Albino Leo Gecko
0.1 Crested Gecko
1.0 Dear Boyfriend
Departed: Harvey and Spock