Cactuspixie
Aquarium Advice Addict
Yesterday the nitrate reading in my 6ft tank was 5.0 but after doing a 15% w/c today, the level has increased! It's not the tap water- I've tested that. When I topped up the tank I used seachem safe, stress guard, and a couple of teaspoons of aquarium salt. I can't tell you what the exact reading is now, because using the api test I can't tell the difference between the 10.0 indicator and the 20.0.