If I have the aquarium power filter is listed below, do I still need an air pump and air stones?

It http://www.marineland.com/sites/Marineland/products/productdetail.aspx?id=2054&cid=2006&mid=3226 It's okay if the water filter poet landfills below the surface?

A couple of corrections with the previous posters. First, and fish, as important not to break the molecular bonds of water. H2O H2O remains in an aquarium. the gills of a fish to remove the dissolved oxygen (O2) of water as it passes through them. Oxygen (dissolved O2) enters the water through surface agitation. Waves, waves, splashes of water in the filter, the disruption caused by a stone bubble … these are added oxygen to the water. There are a couple of things in a bubble stone and air pump will do for water. The first, listed above, will create surface agitation. The second creates a current that draws water from the bottom of the water column at the beginning, allowing gas exchange to happen, what puts oxygen in the water. The thing is that a filter does this too. In most situations, the filter is only going to create sufficient agitation to allow oxygen enough to enter the water. There are some exceptions. If the water is warmer, it may not be enough. If the tank is overstocked, it may not be sufficient. However, for a level 76 to 78 degrees and no more than temporary supply should be sufficient. Another note, the fish with a labyrinth organ require less oxygen in the water. Are capable to get the majority to take gulps of air. Thus, for a betta, a filter is more than enough.

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