- Joined
- Sep 18, 2024
- Messages
- 55
- Reaction score
- 12
- Location
- edinburgh
- What state or country do you live in
- United Kingdom
So, for the past month it’s been a mystery why anytime I put a fish into my new system it dies. I ended up doing an ICP test and it showed heavy metals. Copper at 25, zinc at 117, so I imagine that’s the issue. The problem is I don’t know where it’s coming from. Where is the most likely place?

