Does the topfin element filter provide air too, or just filter the water.?
- noselessmanLv 76 months ago
Yes, But they are junk, get a marineland filter.
- Anonymous6 months ago
1. Any filter that causes disturbance to the surface of the water in the tank provides air.
2. Filters do more than just provide oxygenation, they also trap solid debris, and grow bacteria that process waste in the water to less harmful compounds. This is assuming the filter is maintained correctly and not overcleaned.
Note: top fin filters are cheap and not as effective as filters which have more biologic filtration materials.