I am not an expert, but at this point, I'm not really sure what can be done as far as lack of quarantine since you've already got them all mixed up and mixed together. Did you at least sanitize the tanks/tubs?
The bigger issue I'm seeing is husbandry. How are you controling temperatures and humidity in PVC tubs that are stacked on top of one another? Are they in a rack of some sort? Also, your bearded dragon needs UVB light...not sure if it's good to have him mixed in with the balls.
I'm sure one of the more experienced members will address all of your issues better than I did.
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