HI,
I just got my first test kit about a month ago "red sea".
I have had my 25ish gallon tank up for about 4-5 months.
cc, ugf, which i know are bad for nitrates and a hang on filter. I have one clown fish, 2 turbo snails, 4 blue leg hermits, and a feather duster.
I just did the 10% water change...