I recently got my first tarantula, a 3" Aphonopelma chalcodes, and I am noticing that she is the sides of the terrarium a lot at night. My setup is a 10 gallon aquarium with about 3.5" of substrate (coconut fiber) and about 6"-9" of empty space above (there is a slope). I know this is a huge hazard for my 3" T, and I am getting more substrate soon to reduce the space above. Until then, I want to know just how resilient or prone they are to injury from falls. Should I keep her in a smaller enclosure until I obtain the substrate, or should she be okay for the next 2-3 days in the big aquarium until I get the substrate?