Contact Us Aquatic Biologists, Inc. N4828 US Hwy 45. S.Fond du Lac, WI 54937 View Map Toll Free 800-442-6648Local 920-921-6827Fax Number 920-921-1690 Spring/Summer Store Hours 8am-4pm Monday-Friday Fall/Winter Hours 9am-4pm Monday-Friday Email Us Full Name required Phone Number Email Address required Company Name Comments/Questions required