amano shrimp are great algae eaters, and really neat to look at, but are a bit sensitive to water quality.
a better freshwater shrimp species would be Neocaridina denticulata... otherwise known as the cherry red shrimp. they are considerably smaller, but they readily breed in freshwater, and will tolerate much worse water quality.
if you are interested in getting some for your setup let me know, i have lots for sale at a great price!
I've heard of those and sound cool! How small or should I say how large are they? I'm a bit reluctant to put any in my pond since the pond tends to dry out really quickly.
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"We must not look at goblin men,
We must not buy their fruits:
Who knows upon what soil they fed
Their hungry thirsty roots?"