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These trout have sacks but they are not on their backs.
They use them to feed and they need them indeed.
They might be tiny but they'll grow up to be mighty.
Different stages like different book pages.
Egg to alevin to fry to adult.
They live in water but there isn't much salt.
The chiller keeps the water nice and cool in fact it's a pretty neat tool.
A diagram of an alevin.
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