Wadikus Posted July 29 Share Posted July 29 Happy Mondays everyone I'll preface this by saying I have 3 pretty well seasoned tanks. I am pretty diligent on water testing and changes etc, definitely not a lazy fish keeper. As part of my Monday morning routine maintenance, I tested for nitrite with the API kit and its sort of a dark-er blue instead of sky blue which according to the chart is ~.25PPM in the 29 gallon which the oldest of my tanks and the one with the most stable stocking. The coop strips show nothing at all which would make sense since they are 1ppm. I did a 25% water change and ran the test again and it still show that darker blue and not the sky-blue, there is no real hint of purple. But when I check my 9 gallon flex it comes back sky blue. So I changed another 25% in the 29 gallon and got the same thing again. I checked my 20 gallon multifasciatus tank and it came back somewhere in between the 2. So I changed the water in that one and it's result stayed the same. All other readings, ammonia at 0 PPM, Nitrate ~20 ppm, PH stable across all 3 tanks, hardness as well. Has anyone ever had the nitrite test from API return 3 different but consistent results despite water changes? I feed reasonably and on a set schedule. None of the fish seem stressed and all activity level is normal, am I being too paranoid? Thanks! 1 Link to comment Share on other sites More sharing options...
Whitecloud09 Posted July 29 Share Posted July 29 Can we see pics and also, are you doing everything correctly. Adding 5 drops and shaking for 5 seconds and then letting it sit for 5 mins before checking, @Wadikus. Link to comment Share on other sites More sharing options...
Wadikus Posted July 29 Author Share Posted July 29 @Whitecloud09 Yessir, doing exactly as instructed. I'm not at home at the moment when i get in I will run the tests. 1 Link to comment Share on other sites More sharing options...
Wadikus Posted July 29 Author Share Posted July 29 @Whitecloud09 Here you go - one on left is the flex 9 gallon and the one on the right is my 29 gallon. Its not quite .25PPM coloured but its picking something up, the thing is.. if i do a 25% water change and retest it will stay that darker blue. really confused. As I mentioned earlier, it is the oldest and longest running of my tanks with no real changes in stocking. 1 Link to comment Share on other sites More sharing options...
Whitecloud09 Posted July 30 Share Posted July 30 So odd. It does look like it has a hint of nitrite. On the right. I am so confused lol. Btw like your bulbasoar in the background lol. Interesting….. add prime just in case for some reason it is present. Link to comment Share on other sites More sharing options...
Wadikus Posted July 30 Author Share Posted July 30 (edited) I put some prime in and a maintenance dose of Fritzyme 7. I'm gonna give it a few days just dosing prime and no water changes to see if it happens to clear itself. Even weirder is it never gets darker.. It just stays that blue. Thanks! I 3d printed him - 3d printing is very useful as an addition to the aquarium hobby. Edited July 30 by Wadikus 1 Link to comment Share on other sites More sharing options...
shawnkissed Posted July 30 Share Posted July 30 Have you tested your tap water? Or whatever water you're using for your changes? Sometimes if you have well water you could potentially have some nitrite in it. 1 Link to comment Share on other sites More sharing options...
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