Seachem Prime

[BarryH]

I've been using Seachem Prime for quite a few years now and the last two bottles I've had have contained small black particles. When I went to dose the water in the bucket ready for my usual weekly water change, I noticed bits in the bottle of Prime.

Thinking I had possibly contaminated it in some way, I went out and bought a new bottle (not cheap). This was exactly the same, small black or dark coloured bits in the bottle.

Anyone experienced this before?

 

[mort]

Perfectly normal. Think it just settles out of solution after the bottle has sat there for awhile. I think it's sulphur and over the years I've used gallons of the stuff and it's always had it.

 

[xim]

They said it's normal.
http://www.seachem.com/support/forums/forum/general-discussion/252-prime-question