1st off, how big is the enclousure? if its 20l or bigger its fine. make sure all the geckos get along, keeping a close eye on them for a while. in my experience, any aggression usually shows emmediatly, but you never know. there is no true leusistic yet. what you have is a patternless, im assuming. it also could be a blizzard, but patterless are more common and more commonly mistaked as leusistic. leusistic animals are pure white with blue eyes. i don't know the exact mutation, like albino is without melan, and axanthic is with out yellow. when the first patternlesses were hatched, i think people mistook them as leusistic, thinking the leopard gecko leusistic was just more drab and such then all the others. it's really hard to explain, and even understand true leusistics. the best examples of leusistics are in snakes such as ball pythons and texas rat snakes, and the leusistic nile monitor is also a good one. leusistics rarely live long after hatching in most species. i think i covered everything, i'll go back to the message and check.
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your head will collapse, but there's nothing in it, and you'll ask yourself, "where is my mind"