Movement/Airation

robadk1

Fish out of Water
Jun 24, 2007
292
0
0
Georgia, USA
I have a 5g Betta tank. I want to reduce movement in the tank. I currently have a HOB filter, there's a couple of options on changing that out, what do you suggest?
My main delima is this, how do I keep the water oxygenated and free of that layer of film that sits at the top of the tank?
Any help is appreciated.
 
An air driven sponge filter.
 
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