McCrary
Always Learning
- Location
- Tucson, AZ
Don't worry too much about testing for phosphates; the test kits that actually give accurate results for phosphate are expensive, so just run a GFO in a reactor and change it out once a month or so. If you have changed more than 50% of your total water volume within the last week I wouldn't change out any more water. Just let things happen and be patient, remember- nothing good happens fast in this hobby, lol.