1)Do I need a filter in my 55 gallon sorority tank (17 bettas live there) ? I have 2 filters a nexx canister filter and a Marineland penguin 350 but I noticed that they are too strong and the bettas seem to have a hard times swimming. I already tried using just one but they both seem to be to much.
2) would not having a filter affect my heater by not circulating the water?
3)would not having a filter would increase my water changes? Now I am doing 45% weekly.
4) would not having a filter change water quality and would my bettas do okay without a filter?
5) if I decide to remove the filter what are some good floating plants that are easy to take care?
If there is any thoughts you want to share please do so.
Thanks in advance.