Not marked. Is this ok? 2 diff flavors
No good
Am I allowed to give them away to a non Jew? Someone once told me it was not allowed to give away something not kosher
You can give to a non-jew if there’s some benefit to you. For example If you give it to a cleaning lady, worker etc, and as a result they are grateful to you, which will ultimately be of benefit to you in the end.
Can you please expand on why seaweed is no good? Is it a bug issue?
Yes