Yeah, it's pretty nasty. I guess they get that question a lot - I just checked SeaChem's Prime page and believe it or not it's actually in their FAQ:
Q: I think that my Prime™might be old because it smells like it went bad...
A: Prime™has a very distinct odor that is similar to sulfur which is completely normal. Also, the presence of small black specks is normal.
Gave me a chuckle anyway.
Never seen the black specks, though...
Q: I think that my Prime™might be old because it smells like it went bad...
A: Prime™has a very distinct odor that is similar to sulfur which is completely normal. Also, the presence of small black specks is normal.
Gave me a chuckle anyway.