A little condensation especially in the areas that your photos show I think is fine. What I would be more concerned about is what your actual humidity readings are in the tank, and even more so, how wet your substrate is. Are we talking sopping wet or just a little damp? I would focus more on how wet the substrate is versus how high this is raising your humidity, because it seems like you're keeping in a glass tank, so really the humidity should be dissipating pretty well especially if you have good ventilation in the tank.
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