Hi everyone. Well, after 20+ years of keeping ich, I can count the times my fish had gotten ich about which is about 10 times. I always use Kordon Ich Plus and it always worked. During treatment, I always put it in the water and it makes the water green/blue and I never checked the water parameters because the water was green colored. I was wondering is there a way to check the parameters even when the water is colored? Thanks in advance, Ed.