Hi and welcome to The Tortoise Table and thanks for posting. Congratulations on getting your Hermann's tortoise.
Oh dear, there is such misinformation on the internet, and I know how confusing that can be.
First of all you are absolutely right to have your Hermann''s tortoise in a table and definitely not in a viv. I would be very interested to know the name of the exotic vet who says that young tortoises should be kept in a viv -- could you possibly email me his name so that I can check up on him? We do tend to know the names of many of the most reputable exotics vets in the country and I'd just like to check up on his qualifications. You can email me at
nina@thetortoisetable.org.uk
There are several reasons why vivs are bad environments for tortoises (they are fine for snakes and lizards but can be death traps and are not good for tortoises).
Tortoises are ectothermic (they don't make their own body heat like mammals, but rely on the temperature of their environment to produce their body heat, and they need to wander from warm zones to cooler zones to thermoregulate, and you want a temperature grade between 30C at the warm end and 20C at the cool end. Most vivs, because of their enclosed nature, do not allow such a temperature gradient. It's true that a 6 foot long vivarium would probably allow that temperature range, but there are other reasons why vivs are bad.
Most vivs are high sided but don't have a huge amount of floor space. This is good for snakes and lizards which like to climb up branches etc. in the viv, but tortoises are confined to the floor. Tortoises get bored in small spaces and the larger the table the better.
Tortoises need a well-ventilated environment, and vivs with vents for air circulation just don't provide enough ventilation and this can lead to respiratory problems.
Here is an article from The Tortoise Trust about why vivariums are not good environments for tortoises:
https://www.tortoisetrust.org/articles/vivarium.htm
and here is another article from The Tortoise Trust reviewing a typical vivarium regarding its suitability as a home for a tortoise:
http://www.tortoisetrust.org/articles/vivreport2.html . There are reports on several other vivarium designs too, but the conclusions are pretty much the same.
Grow tents can be a reasonable alternative if the walls are of mesh and allow adequate ventilation, but they take up a lot of space, and a tortoise table is the best environment. You can maintain adequate humidity by using a soil and sand based substrate that is kept very slightly damp (not wet at all). You can also build humid hide for your tortoise and we can send you an article on that if you are interested.
If you'd like to send us a photo of your table, we'd be happy to have a look at it and make suggestions of little tweaks if necessary, but I'm so glad that you got a table instead of a viv. Many people are mis-sold vivariums by pet shops and then end up with real health problems, and we have several articles on how to convert a vivarium into a tortoise table.
I hope that helps, and please don't hesitate to come back with any questions, etc. You probably already have a good care sheet for Hermann's, but if not then here is a link to one:
https://www.tortoise-protection-group.o ... 014New.pdf
Nina