Red Sea NO3 test inaccurate?

https://www.triton.de/en/

ianryd

Active Member
View Badges
Joined
Dec 21, 2018
Messages
367
Reaction score
239
I'm testing nitrates in my new tank. Had a quick cycle since I used rock and sand from my current tank. I'm making sure its ready for fish, because the first Salifert test I did after cycling showed 50ppm nitrates. I've changed 60 gallons of water to bring them down. I did 4 tests with 3 different kits. after the WC Here are my results-
Red Sea NO3 Pro high range 0.0
low range 0.75
Salifert between 5 and 10
API 10

I usually test with Salifert but wanted to compare it to a few others. I'm more inclined to believe the salifert and API since their results are closer. I'm just wondering why the red sea is wildly lower. Every time I use it it seems way lower than my other kits. All test kits are within expiration. I know either way its safe enough to add fish, but It takes like 10 minutes to test and costs way more than my other tests, so I'm just wondering if anyone else has experienced similar results with the Red Sea.
 
Fritz

mike550

Valuable Member
View Badges
Joined
Oct 13, 2019
Messages
1,181
Reaction score
1,585
Location
Chicago
I've never used Red Sea, but have used both API and Salifert. I've come to trust Salifert and have had others test my water and had similar results. That said, I recently switched to NYOS because the test was easier to read than Salifert.
 

Dan_P

Valuable Member
View Badges
Joined
Sep 21, 2018
Messages
1,636
Reaction score
1,502
I'm testing nitrates in my new tank. Had a quick cycle since I used rock and sand from my current tank. I'm making sure its ready for fish, because the first Salifert test I did after cycling showed 50ppm nitrates. I've changed 60 gallons of water to bring them down. I did 4 tests with 3 different kits. after the WC Here are my results-
Red Sea NO3 Pro high range 0.0
low range 0.75
Salifert between 5 and 10
API 10

I usually test with Salifert but wanted to compare it to a few others. I'm more inclined to believe the salifert and API since their results are closer. I'm just wondering why the red sea is wildly lower. Every time I use it it seems way lower than my other kits. All test kits are within expiration. I know either way its safe enough to add fish, but It takes like 10 minutes to test and costs way more than my other tests, so I'm just wondering if anyone else has experienced similar results with the Red Sea.
When you obtain a “0” it can be “0” or a bad test. The first step In Red Sea test with vigorous shaking for 1.00 minutes is important. Red Sea is usually reliable and cosistent.
 
OP
ianryd

ianryd

Active Member
View Badges
Joined
Dec 21, 2018
Messages
367
Reaction score
239
I got the 0 reading on the high range test which measures 4 ppm and above, so I figured it was because the reading was lower than 4. I shook the ba-jeezus out of it and followed the directions closely. Maybe I'll try again tonight.
 
https://www.triton.de/en/

Are you currently running a reactor and media on your reef tank?

  • Yes (please tell us what in the thread)

    Votes: 124 38.2%
  • NO but I run media from time to time

    Votes: 102 31.4%
  • NO I don't use filter media

    Votes: 91 28.0%
  • Other (please explain)

    Votes: 8 2.5%

Online statistics

Members online
2,539
Guests online
7,676
Total visitors
10,215
MrReefs
Top