Should test both bro especially when new tanks are concerned. Bet you know the nitrogen cycle. Over time when the tank matures, NO2 are not really necessary to test, only for NO3.
Good luck bro
Should test both bro especially when new tanks are concerned. Bet you know the nitrogen cycle. Over time when the tank matures, NO2 are not really necessary to test, only for NO3.
Good luck bro
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