Definetely. Without a filter, full 100% water changes would be necessary often. With a filter, it allows good bacteria to grow to help with water quality like ammonia, nitrates, and nitrates. I suggest you read up on cycling :)
With a filter in a cycled tank, you would still have to do water changes weekly, but only about 30% or so with a vacuum syphon. It's a lot easier than 100% changes every other day or 2.