Aquatox Research offers freshwater effluent and stormwater aquatic toxicity testing (biomonitoring) services in addition to specialized toxicity testing and chemical testing ( Microtox) and information-based services highlighted elsewhere in this website. Tests are typically conducted with larval fathead minnows (Pimephales promelas) and early instar invertebrates such as Ceriodaphnia dubia . Aquatox Research routinely conducts tests with these two organisms and maintains an active reference testing program to demonstrate quality assurance. Aquatox Research staff possesses more than 30 years of experience in conducting toxicity tests with both fathead minnows and aquatic invertebrates, such as Ceriodaphnia .