How important is time using a freshwater master test kit ?

Guppy777

Member
Recently got a API freshwater master test kit. Testing nitrite the color is lite purple (.50 ppm) at 5 minutes, at 10 minutes its 0.25 ppm and at 15 minutes its lite green 0 ppm. Is it set in stone to use the 5 minute color ?
 

RomanNoodles96

Member
Guppy777 said:
Recently got a API freshwater master test kit. Testing nitrite the color is lite purple (.50 ppm) at 5 minutes, at 10 minutes its 0.25 ppm and at 15 minutes its lite green 0 ppm. Is it set in stone to use the 5 minute color ?
Yes 5 minutes. After that the color diminishes and eventually reaches 0.
 

Madeline Peterson

Member
If that's what it said in the directions, yes.
 

bendybetta

Member
Guppy777 said:
Recently got a API freshwater master test kit. Testing nitrite the color is lite purple (.50 ppm) at 5 minutes, at 10 minutes its 0.25 ppm and at 15 minutes its lite green 0 ppm. Is it set in stone to use the 5 minute color ?
Thats weird I have the same kit but my color never diminishes.
 

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