We never received any of the bad batch powder type - as ADA threw it all away, but they just notified us that there was a problem with the refinement process and they would not be sending out any new bags until they re-manufacture it.
Frrokk- normal doesn't look bad in a Nano, it just looks a little large initially, but once plants grow in you don't notice it.
Thanks frank. I may have sourced some. The only thing I was concerned about was growing HC with the bigger grains of AS normal.