Believe it or not, no substrate. Baby Shinisaurus can be such passive hunters it's best not to give the prey anyplace to hide. This is more of a problem with crickets than it is with small feeder fish.
Otherwise just use a small tank with something propped under one end to tilt it up.
As far as water quality, simply do frequent changes with water you've allowed to age to room temperature. I would not use distilled.
I prefer the sloped terrarium idea to the flower pot. This will make it easier to have the hide area partially submerged.
If you have a herp room that is already slightly warmer than normal room temperature that should be sufficient. These are very cold hearty. Check with the person you're buying from obviously, to see how he or she is raising them.
Unfortunately, all of my contacts are zoo contacts and they prefer not to have their names given out.
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is what your saying is a small glass tank with water and curved pice of cork bark? what about substrate? water quality? heat? can you use distiled water? or a small tank with say a flower pot base for a sallow pool? or would plastic or glazed ceramic be better? i just want to do the best that i can. but i don't want to over do it. can you point me in the dirction of some contacts?