Tested my water for the first time in years and I'm at 0 nitrates and 0 nitrites but .25 ammonia. What can this be from? Should I do a water change? I've read not to because your getting rid of bacteria the tank needs. Confused please help

i would check your test kit. if you have ammonia you should have nitrates and nitrites.
How big is your tank? How long do you wait between water changes? The only reason your ammonia is elevated is something may have died? Is anything missing?
i would check your test kit. if you have ammonia you should have nitrates and nitrites.
