Tomoko Schum
New member
An old test kit is definitely a suspect. You should have your water tested with another kit.
An excessive nitrate problem is typically a result of bioload exceeding the filtering capacity of an aquarium. Having too many fish or feeding too much can really do a number on the nitrate level.
Would you tell us a bit more about your tank such as the size of your tank, the number of livestock, the amount of rocks, the type of skimmer, etc. How often and how much do you feed your fish?
Do you use RODI water to mix your salt water?
An excessive nitrate problem is typically a result of bioload exceeding the filtering capacity of an aquarium. Having too many fish or feeding too much can really do a number on the nitrate level.
Would you tell us a bit more about your tank such as the size of your tank, the number of livestock, the amount of rocks, the type of skimmer, etc. How often and how much do you feed your fish?
Do you use RODI water to mix your salt water?