What are your temps top cage, mid cage, bottom?
What are you using to obtain temps (digital therm, stick on therm. etc)
What kind of cham do you have?
You say you provide calcium but what type of schedule do you use for your female, as you have had longer this will give us an idea.
UVB - What brand? 5.0, 10.0? Coil bulb or linear tube?
Water - you said you spray twice per day but for how long each time? Do you see either of your chams drink?
Can you post pics of your current set ups & chams?
How much have you handle the new cham? Too much in 3 days could cause a fair amount of stress (color change for sure).
As you can see, many things will effect your chams and depending on the situation, color change is usually bound to happen from any type of stressful situation. Warming up in the morning usually chams are darker.
BUT without fully understanding your chams setup/lights/heat I wouldn't feel confident is stating a particular possible problem &/or solution at this time.
I think you will find that it may be time consuming to answer questions & fill out the form, but in the end you will get the best possible advice/help any of us can offer knowing the most info of your situation
