I have a API freshwater master test kit that I bought back in 2017/2018, but the expiration in the bottles are still good.
I just set up my nano tank (Fluval evo 13.5g)
Based on my research, it looks like I can reuse this kit for saltwater (ammonia, nitrite, nitrates) for the most part, but the color card is different. I've seen different card by googling it so not sure which is correct. I also don't know if I can test my pH level using the high-range?
Today is now the 4th day and the ammonia color is making me insane since I do not have the color card for the saltwater.
Attached are the pics. I tried getting pics from different angle and lighting but I think what I got is very close in person.
yellowish/greenish - ammonia
blue - nitrite
light orange - nitrate
purple/violet - high range pH
If I am going to interpret this using the freshwater card, it's looking like
ammonia - either 0 but most close to 0.25ppm
nitrite - 0 ppm
nitrates - 5-10ppm
ph - 8.4
I'm hoping someone who has the correct color card can compare with theirs. Thanks for the help!

I just set up my nano tank (Fluval evo 13.5g)
- RO/DI water
- 10lbs of live rock (real reef) from LFS which is supposedly cured but the guy said "I would still cure it to not blame the store" but I transported it in a bucket with water and saw some pods
- Bio-Spira (Instant Ocean Nitrifying Bacteria
- A snail and hermit crab
- No fish or corals yet
Based on my research, it looks like I can reuse this kit for saltwater (ammonia, nitrite, nitrates) for the most part, but the color card is different. I've seen different card by googling it so not sure which is correct. I also don't know if I can test my pH level using the high-range?
Today is now the 4th day and the ammonia color is making me insane since I do not have the color card for the saltwater.
Attached are the pics. I tried getting pics from different angle and lighting but I think what I got is very close in person.
yellowish/greenish - ammonia
blue - nitrite
light orange - nitrate
purple/violet - high range pH
If I am going to interpret this using the freshwater card, it's looking like
ammonia - either 0 but most close to 0.25ppm
nitrite - 0 ppm
nitrates - 5-10ppm
ph - 8.4
I'm hoping someone who has the correct color card can compare with theirs. Thanks for the help!



