Is it time for a water change?

DrogJustDrog

Last time I tested my water on my fishless cycling 5.5 gal I got 0.50 ppm ammonia, 0.00 ppm nitrites (when I would previously see around 0.40 ppm for a few weeks or so) and around 20-40 ppm nitrates. Occom's razor, all that nitrites became nitrates and now I got a whoooole lot of nitrates and still a little bit of ammonia. Should I do a water change? Would that manage the ammonia in addition to the excessive nitrates?
 

CPTropicalAquatics

Yeah, I would recommend a water change.
 
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DrogJustDrog

Thanks, I went ahead and did it. The ammonia test afterward read around .25 ppm however there was a yellow gradient even after waiting for several minutes so I believe it could be a bit lower than that
 
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CPTropicalAquatics

Thanks, I went ahead and did it. The ammonia test afterward read around .25 ppm however there was a yellow gradient even after waiting for several minutes so I believe it could be a bit lower than that
I find that sometimes the color falls in between sometimes. It's possible it could be around .10 - .20ppm. Good luck with your tank!
 
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