05-27-2011, 10:34 PM
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Puzzling Ammonia Levels
I've had a 10 gallon aquarium for about a year now. I did a fishless cycle, and have some guppies, and tetras. In the beginning when I first set things up, I would test daily, then every other day, then once a week. Whenever I tested, ammonia levels were at 0. 2 weeks ago, the water got a bit cloudy suddenly, so I tested the water and my ammonia levels were off the charts. I use an API master test kit. When I say ammonia levels were off the chart, I mean the water I tested turned dark, dark green. It almost looked black. So I did a partial water change, and tested the next day and ammonia was still off the charts. Kept doing partial water changes, and the ammonia level has remained high. None of the fish have died, but the ammonia tests continue to be very high. Any ideas what could be causing this?
As a side note, after I did the initial water change, a few days later, the water cleared up.