Weekly maintenance recap:
- Performed a routine water change to close out the month.
- Pre–water change nitrate levels tested between 10–20 ppm, remaining within a stable range. Completed a normal water change using the usual large-volume method.
- During maintenance, Purigen was replaced along with the polyfill layer placed on top of it. The previous Purigen had been in use since mid-November, making this a scheduled and timely media refresh.
- Due to the media change, Stability was dosed to support beneficial bacteria and maintain biological balance.
- No other adjustments were made during this maintenance cycle.
- System remains stable heading into February.