- Joined
- Jul 23, 2025
- Messages
- 25
- Reaction score
- 43
I just checked my water and my nitrates have dropped to zero. They were 4.9 last week. I added Phosguard and Charcoal to the rack in my 50 gallon AIO. I do this once a month. Could Phosguard and charcoal make my Nitrates zero? Thanks. Brian
