+1 on the slow acclimation. A 2 point difference in salinity (ie. 1.023 and 1.025) is enough to kill them instantly if not drip acclimated over at least a half hour. Shrimps with their thin exoskeletons are incredibly sensitive to osmotic pressures.
There is the possibility that the shrimp is hiding. I think they know they taste good. It's not unusual at all for them hide incredibly well at first. Of course, it's possible he was someone's lunch too. Hard to say. You never know he might show up in the coming weeks. Or ... not.
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-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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