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I'm fortunate in that I live reasonably close to Co-Op. When I placed my order, a store member who knew me called me and asked if I wanted it shipped, or if I'd like it held for the next time I came in. To me, this level of service is basically impossible to find in nearly any retail field - and it's the reason I've made Co-Op my LFS even though it's not the closest - it's worth the service.
The EM is wonderful, I've adopted Cory's quarantine regime and it's been wonderful for my little fishy friend's health. I love the larger size as it's much easier to dose larger tanks if needed and the value for a larger jug is awesome - it'll last me a long time, which makes the value even better. Thanks Cory and the Co-Op team, you folks are stellar from your advice, to products, to service - everything is 5 star about you.
The order was shipped the same day I ordered and arrive on the east coast in two days. It worked as described. Thank you!
It says 10 packets treats 100 gallons, BUT a full treatment requires 4 doses over 4 days. So a 10 packet box really can only handle 4 doses for a 20 gallon (8 packets) to complete the treatment regimen with two packets leftover. So, don't be like yours truly who bought one box, but has a 29 gallon and is now short 2 packets to complete the recommended treatment.
This confusion aside, a 5 star rating because the medicine is worth it for the health of your fish, & Aquarium Co-op shipping was prompt & packaged very well compared to the hack jobs you can receive from Amazon or random ebay sellers.