APPROPRIATE ENCLOSURE SIZES
How much room do each of us need?
There is no concrete answer.
The first 5 years of my hobby was lived without the hobby opinions and often this area is one I have disagreed. My areas have always been smaller than those generally accepted. I have often found that a smaller space creates a more secure reptile. In this house addressing security issues is a priority. A secure reptile eats and basks and has little stress. My spaces are designed with that in mind.
One example: My male Uro Java had a 2 foot square. But that 2 foot square had 3 levels. Each smaller than the other but adding up to a total of approximately 6 square feet which is only 2 foot smaller than the 8 recommended. This allowed me to heat the environment sufficiently. Provided exercise with climbing. Provided a 20 square inch hidden level. It is what worked for this lizzard and made him feel secure in his own space.
I had used larger spaces with Java when he had arrived but he did not thrive. This is what worked for him.
One example: My male Uro Java had a 2 foot square. But that 2 foot square had 3 levels. Each smaller than the other but adding up to a total of approximately 6 square feet which is only 2 foot smaller than the 8 recommended. This allowed me to heat the environment sufficiently. Provided exercise with climbing. Provided a 20 square inch hidden level. It is what worked for this lizzard and made him feel secure in his own space.
I had used larger spaces with Java when he had arrived but he did not thrive. This is what worked for him.
This 2.5 foot tall, by 3 foot wide hexigon raised 4 water dragons simultaneously while supporting other life. This has been a very successful living environment for a dozen years here. It currently supports a water dragon, 2 map turtles, 2 giant snails and a few small catfish. The water area is 30 to 50 gallons. There were lots of basking choices and hiding spots. The humidity stays high enough there was rarely a shedding issue. The female water dragon was 3 when the younger dragons came as a trio (all male). B&E had to be separated young but returned to that tank during healthy times. The males were separated just short of mating season at their 3rd birthday.