Originally Posted by Tracy Bird
Wait a minute, I'm confused which doesn't take much...
You opened up the lid on the filter which has been sitting full of water for months and the ammonia was 4.0 ppm?
Or the ammonia level in the filter is 4.0 after you hooked up the filter to the tank and after you dosed the tank to 2.5?
Sorry, just trying my best to follow along....
Yes, I popped the top of a canister that has been sitting full of dirty (seeded) media and water for 4 months and the water at the top was 4 ppm.
I only have an XP3 running on the tank at the moment. I can only assume the ammonia concentration was up in that filter too, as they were unplugged at the same time. I added ammonia to make around 2.5 ppm for the tank, but with what was probably in the filter the overall concentration may be as high as 3 ppm.
Tomorrow night I'll post test results.