jarrod0987
Aquarium Advice FINatic
- Joined
- Jul 12, 2005
- Messages
- 512
Most of the good bacteria are stuck to surfaces. I can't say that water changes don't remove a single one but they defiantly don't remove the overwhelming majority of it. This has been stated by Dr. Tim who has a PHD or 2 and the discoverer of the strains that exist in aquariums. It has also been stated by others. When you see spikes from a tank cycling you are basically looking at a work backlog that the bacteria haven't got to yet. If you wait, the bacteria double, and can work faster. If you remove water, you are also removing backlog, so they catch up faster.