Tin in the glass?

ryshark · Nov 20, 2018

I was having issues with acros so got an ICP which said my tin level was 17. So I looked at my equipment and all I found was a small screw in my sump with a little rust on it. I assumed this was the issue. Then I ran cuprisorb and started doing weekly 25% to 30% water changes for months to deplete the tin and my acros started doing much better. Then I stared spacing my water changes out to 3-weeks and my acros started going downhill again. I just got another ICP test and the tin is still there at 13. I checked my equipment last time and only found the screw in sump. I don't know what else it could be. I wouldn't be surprised if my glass from my tank was floated on tin when it was made. Does anybody know how long that it would take before tin would stop leaching from glass? My tank is almost 2-years old already.

NY_Caveman · Nov 21, 2018

It seems this can happen when the glass is new, but gets corrected pretty quickly through regular water changes. On a two year old tank glass seems an unlikely source, but I am no expert.

ryshark · Nov 21, 2018

NY_Caveman said:
It seems this can happen when the glass is new, but gets corrected pretty quickly through regular water changes. On a two year old tank glass seems an unlikely source, but I am no expert.

I'm hoping this is the case because I have a new tank (from same manufacturer) double size that I'm waiting to be setup. But I'm afraid I'll have the issue again. I wonder if the same goes for "bad" pvc, meaning that eventually the tin goes away???