The size of your tank would be helpful to know,
Considering you said :bowl" then It must be small.
You need to do a water change every other day, Twice a week minimal.
You need to add conditioner to the water before you add it to his tank.
A complete water change WILL NOT hurt your betta, Will actually do more good then harm being in such a small bowl.. A complete water change should be done every week, At least once every two weeks minimal.
1 pellet isn't enough, Most on here that feed pellets give 4 to 8 pellet per day, with one day of rest (no food given)
Most will like having something to rest and or hide in/on
only thing you need to add is the conditioner
is there anything else i should know that is important to the welfare of my fish?
Yes!, Water change, and water change, You want a healthy betta, Then do his water changes without fail,
if you can afford a bigger tank all the better, Little tanks, Be sure you keep up with those water changes, Nothing is better then fresh clean water, Beats any medicine you can buy for your fish,,,