i use a heat mat for my leos.you dont need a bulb for leos as they absorb heat differntly then beardies.they have to have heat through their stomachs so this helps them digest their food easyier.you can use a bulb but you should put a flat peice of slate or sumit under it for them to lie on.but honestly its easier and much simpler to use a heat pad.you need one that covers 3/4 of the viv leaving a cooler end.
I have got a 24x23x25" viv, A medium reptile cave, A small reptile den, a cricket rock feeder a worm dish and a UV desert light strip.
I know i need a water dish but i dont know what size Medium or small??
well if your planning to have 3 females are you having juvies or adults.if you have juvies-babys-then you can get away with a 11x11 but when they grow you will have to buy a 17x17 one so they have plenty of room to themself
well cresties are nocturnal, so also dont need UV.
good vitamin supplementation for your leos should suffice, and if you use UV, it wont do any harm and hopefully benefit your animals.
As for the suggestion of meal worms, ignore it until they are older if you are getting babies. crickets and hoppers are nutritionally better, and mealworms are hard to digest because of their chitlin content. Once they reach adult size, mealworms can be given as a treat, and also waxworms. butterworms and silkworms[/i]