rocks,gravle on the bottom and lots of water.
no you cannot put turtles and iguanas in the same cage.. separate them.
Yes, you can put your Shih Tzu in a cage provided that the cage is big enough to accommodate it.
Yes you can! In fact it is recommended that you do!
I think it depends on how big the turtles are.
In a big cage
No, they will most likely eat your fish.
you should not put them together because tortioses live on land with little water. eastern painted turtles love water and spend most of their time in water. what i would do is get two different tanks to put them in. by the way eastern painted turtles are omnivores and hermann's tortoises are herbivores. the two wouldn't work together.
5.
A Big Cage
You can but there is a big big chance of them mating and having lots of kids
Yes, two male box turtles may fight if they are placed in the same cage, as they can be territorial and competitive. Aggression can manifest as biting, chasing, or attempting to establish dominance. To prevent potential harm, it's generally advised to keep male box turtles separately or only introduce them during supervised interactions.
Most definantly! You could put a thousand in and it would ok! Parakeets are very social. Just make sure you have a big enough cage.......or an aviary!