hi there,welcome to the forum.Hibernation in auckland is possible but depends on location and your knowledge.You can get away with alot of things with an adult tortoise that you may well come unstuck with juveniles,which is more than likley what you will be dealing with?Anadapted fridge or winecooler etc is definatly worthwhile looking at,proper hibernation is a must for good health and longevity and you can pretty well forget about breeding without it.I know of a case in point of an adult female hermanns for example that never ever looked like laying an egg,being receptive to a mating or alot of other typical tortoise behaviour,following a controlled fridge hibernation all this changed to normal behaviour.
pyramiding is a whole differnt ball game and I htink it would be safe to say overseas breeders are years ahead of us?We have only had any regular breeding for the last 5 years or so with just a few lucky people with adult females and the knowledge to hatch and rear?
I have seen for myself the benefits of using a damp high humidity sleeping area for hatchlings and think this has more of an impact than diet.Lets face it in the wild what does a walnut sized tortoise do to survive?Hides in the top layer of soil under roots etc where it is a bit damper than out in the scorching sun even the adults stay out of the really hot sun.pyramiding seems to be more of an issue with spurthighs than Hermanns and there are some horric walking handgrenades out there.
one on its own is fine and if you did have two adult males together they would spend most of their time trying to dominate one another or engaging in homosexual activities?my male is kept in segregation for 10 months of the year?people humanise them but in the wild they are solitary and mate on chance encounters,males attack each other on sight and drive the weaker one away.Good that you are doing your homework and remember its a long term thing,if you care for your tortoise it will outlive you.