those little pumps will keep a quart of shrimp in a 5 gallon bucket alive
all day long on a boat deck.
well, the quantity of shrimp does (hopefully) decline over the course of
the day and i change the water every couple of hours or so and try to keep
them in the shade, what little there is on an open boat.
i find that shrimp are a darn site more delicate than most fish are.
50 mummichogs will live in a 5 gallon bucket for a couple of days with no
aeration and no water changes.
ymmv
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