If you have recently purchased any plants or moss balls from Petco/Petsmart, or someone who uses the same Breeder as them, you may want to be on the look out for these highly invasive mussels.
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An important alert from USGS NAS. Please read information below and share broadly!
There has been a troubling sighting report from Seattle. A PetCo employee has been finding zebra mussels attached and inside moss balls sold as aquarium plants.
This has been entered into NAS and USGS has been in contact with the WA AIS community. The more significant danger is these moss balls being distributed across the U.S.
Here is the NAS specimen report for more information.
An alert has been generated that matched your criteria from the Nonindigenous Aquatic Species database:
Dreissena polymorpha (zebra mussel) was found in a new State, County, Drainage
Drainage: Puget Sound (17110019)
Location: [Hitchhiker on pet store plants]
NAS ARM map was not generated because we presume the introduction has failed.
Zebra mussels have been found in shipments of Marimo moss balls (an aquarium plant) that are sold at pet stores.
More information on this specimen can be found:
More information on this species can be found: