I kept tokays in the past - they are beautiful to look at although as others here have said they don't generally like to be handled and will adopt a defensive/aggressive posture when they feel threatened. They tend to turn and run into their hide rather than attack, but when they do bite it hurts and they hold on for a long time before they decide to let go. I know this from painful experience. They do vocalise - it can be quite loud - so keep them somewhere where they won't wake you up !
They are probably best kept individually as they can be territorial. As they are arboreal a tall viv is necessary, and as they are nocturnal you'll need plenty of hides as they are shy during the day. They are insectivores and wil happily eat mealworms, crickets, locusts etc. I used to catch large spiders for them in my garden occasionally - judging by the tail thrashing as they hunted the spiders they seemed to particularly enjoy them.
In summary - they are great geckos to keep but don't expect to handle them often, or wear gloves if you do....
i've kept leos for 6 years, yesturday i bought a female adult female Tokay, yup lil'bit fierce - but like mentioned its only defending itself. the reptile specialist was a pro at catching biting reptiles, he also mentioned the Vineagar trick or submerge in water fully & they'll let go right away, do not pull off or your'll skin will come with it. lol, adds to the fun of it for me - One question i do have is sexing - The female i bought looks like a female looking at the vent layout - no 'plugs' but i was only comparing to the way leos vents look, shes also lil'bit dull - more grey than blue and dull orange spots. could anyone shed a bit more light on this?
adult males have a distinct row of preanal pores and will have hemipenal bulges, whereas in the female these pores are much less visible. If the gecko has just been rehoused it will probably be a little stressed, and when they are stressed tokays tend to darken in colour. If it has plenty of places to hide, the correct tempertures and humidity it should soon calm down and begin feeding, and then it should lighten in colour.
Awesome, just as i thought, shes a she lol. you're right, shes lightened up a bit, shes not so snappy either. thanks for the help, much appriciated.
Scott.