betta tank set up

Question
"i just set up a 5 gallon tank, gravel at bottom, 2 live plants, and one male betta. heater set at 78F, flourescent light on hood.

also - i turned off the filter, as it seemed the beta didn't like the current that it caused.

Knowing that I have limited tank space and 1 male betta, any recommendations on other tankmate(s)?  

is it ok that i have no filteration - should i find a less powerful filter or turn it on intermittenly?  i am aware that with this small tank size i will need to check water chemistry regulary and make frequent partial water changes.

many thanks!

susan

Answer
Hey again Susan =]

I would 25% every four days.

And you could get a bubbler.  

Its an airpump which sits outside the tank with a pipe going from that into the tank with an airstonr at the end and it blows bubles in the water.

This would be better :)

Jack