- Joined
- Oct 13, 2022
- Messages
- 214
- Reaction score
- 80
- Location
- chicagoland
- What state or country do you live in
- Illinois
I just started a 10 gallon QT tank for a new purchase. I pulled a black course filter sponge from my main tank that is 6 months old and added it to the QT hob filter. Will this be sufficient for one small fish? Api is starting to show ammonia but I know all the issues with that test


