ADVANCE FOR USE SUNDAY, APRIL 29 - in this Wednesday, April 18, 2018, students, from left, including fifth-grader Olivia Wright, third-grader Zach Utley and fourth-grader Gage Starr, collect water samples from an aquarium at Chapman School in Chapman, Neb., where about 60 baby trout are being raised. The water is checked once a week for levels of pH, ammonia, nitrite and nitrate. The trout were eventually delivered to the Schramm Park State Recreation Area. (Barrett Stinson/The Independent via AP)
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