I think you can afford to remove the container cover.
I also don't think you need to worry about the keiki not growing any. If it doesn't grow now, it'll grow later.
Of course, always watch them to see if some adjustments need to be made.
Ok. Just removed the top and moved the keiki so it's standing upright (leaning on the side of the container) rather than laying flat, in hopes that the root will grow downwards. Thanks again!