How long have you had these animals?
It's a good thing if they have plenty space. Yet there are HUGE differences as regards their requirements. Beardies are desert dwellers, too much humidity is certainly bad for them, and they require much higher basking temps than a basilisk. We're not saying you treat them bad, but many problems may arise sooner or later due to improper husbandry conditions. You know, each species have their own needs and you have to take this into account. Not talking about the dangers of cross-contamination: one given species may carry bacteria that are natural and harmless to them while other species from different parts of the world may become seriously sick with the said bacteria. On a human scale, think about what has happened when Europeans colonized America: millions of native American Indians died out of benign diseases such as the flu, cause their immune system was just not prepared to it, meanwhile the Spanish, Portuguese, English...brought back to Europe deadly diseases which did not harm the Indians. I'd say the first thing you need to learn here is how important it is to provide each species with natural conditions just like they find in the wild, including temps, humidity, food, nocturnal or diurnal habits, behavior...even though these animals may be captive-bred for many generations. Things often don't get bad at once, but on the long run improper husbandry parameters may lead to disasters. As for me I'm not here to judge you but to tell you what you should change, for the own good of your animals. Healthy reptiles on the long run do matter more than any other consideration.