spoonman
Aquarium Advice Addict
Look like readings from an uncycled tank to me. Or a bad test kit. I believe the last 4 numbers of the lot number on the bottles is the month and year of manufacture. Some tests are good for 3 years other tests for 5. Was the bottle 2 of the Nitrate test shook for 30 seconds before adding 10 drops then the mix shook for 1 minute after adding, then sat for 5 minutes?