- Joined
- Jan 31, 2023
- Messages
- 118
- Reaction score
- 29
- Location
- usa
- What state or country do you live in
- Massachusetts
A bio brick is simply a place for bacteria to colonize.
Yes, you can still add nitrifying bacteria.
Please read the first link I posted.
*Update* 24 hours after 50% water change and dosing of bio-spira. Ammonia has dropped to .5 ppm and Nitrites to .5… Nitrates are now present and up to 40 ppm

