high nitrate

  1. Stefanie O'Dell

    Hi Nitrates in new tank, is CO2 reason?

    I started 2 tanks at once about 2 weeks apart. New tank is 32 biocube. I have a large Anubis and driftwood and running CO2. All natural gravel substrate recycled from 5 years ago. 3 fish living in it as I used 75% of the old water when I changed out tanks. Having a really hard time keeping it...
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