First you need your rahkshi set. Take a look at it. The size comparisene (sp) to the rahkshi and kraata are imense (sp).
Now we know if a kraata is put in protodermis presto! you have a rahkhsi or do you?
Now here is a thing, when kraata are put in protodermis they have to grow to become rahkshi and the rahkhsi are huge compared to the kraata. Now this takes time to become a rahkshi. Not a few mintues or hours nor months, try two and a half years. Now I bet you are thinking now this cant be true, coz the toa where in proto for a minute and look at them. Well I put some thought into this. The toa form was already there, the proto just advanced them. In other words the toa where not little slugs they where already grown. So it takes a long time for a kraata to grow into a rahkshi.
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