I have two saltwater tanks, one is over a year old, the other is maybe 6 months. I’ve been having issues with a new bubble tip, so I took water to the store for testing. The use seachem kits, it showed nitrite in both tanks. I did purchase one to monitor at home, and got the same results. Are the kits reliable? I’ve never used one so have no experience with them. Or do both of my tanks have nitrite? This is the result, the same
For both tanks. The clear one is the control.
For both tanks. The clear one is the control.