Registration is open for the Waterloo Piranhas Swim Team. Cost is $100 for the first swimmer, $75 for the second and $50 for each swimmer after that. Register online at waterloopiranhas.com or in-person April 17 from noon to 3 p.m. at the Monroe County YMCA or April 28 at Acorns Golf Links from 7-9 p.m. Email WaterlooPiranhas@gmail.com for more information.