The Planted Tank Forum banner
1 - 2 of 2 Posts

·
Registered
Joined
·
494 Posts
Discussion Starter · #1 ·
Does the nitrogen in liquid fertilizers affect a nitrate test? I checked mine shortly after doing a water change and dosing liguid ferts and it was up a bit, between 40-80 ppm. I ran out of nitrate test solution, so I can't see if it went down significantly. The next time I add liquid ferts I will test before and after to see what the difference is, but until then I'm wondering if anyone has any experience with it? It's my heavily planted 75g tank.
 

·
Banned
Joined
·
6,196 Posts
Does the nitrogen in liquid fertilizers affect a nitrate test? I checked mine shortly after doing a water change and dosing liguid ferts and it was up a bit, between 40-80 ppm. I ran out of nitrate test solution, so I can't see if it went down significantly. The next time I add liquid ferts I will test before and after to see what the difference is, but until then I'm wondering if anyone has any experience with it? It's my heavily planted 75g tank.
Short answer is yes. Test will read NO3 from fertilizer.

In fact, you can even make a calibration solution to see if your test kit is accurate. API can be wildly off.

Salifert gives consistent readings and always calibrates correctly.
 
1 - 2 of 2 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top