PerfectDepth
Aquarium Advice FINatic
- Joined
- Jul 9, 2013
- Messages
- 607
Yes, for future reference, you should keep the old filter running along with the new one for a while until the new media is established, or place some of the old established media into the new filter. The filter is where most of your beneficial bacteria lives, so it's not a good idea to just remove it completely.