and if you see this kind of thing in a pet shop then tell them it's not a good idea and that you won't be back there anytime soon.
this is a lot like what I have seen with fish displays.
many times folks cram things together ... and it works for a while... and then one animal gets sick or grows larger and then you have a problem real fast.
and with reptiles most of them will eat any smaller reptile if they get a chance.
by the way this has to be one of the all time top 5 questions that everyone askes at first.... and Later you will understand how bad the idea of mixing them is....
( unless you are willing and able to create a totaly balanced ecosystem .... size, prey items, light, temp, day length and many other issues, making sure what is compatible with what and only combining animnals that do not compete for the same food etc... ) a big job to do right.... that could cost some big $$$$
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