Adastra, that was the problem I was having. Nothing adjustable and the every other one I found didn't have great reviews. I REALLY don't want cooked Bettas.
As far as the Nitrogen Cycle. Well versed. I've always used live plants in larger bowls with cultured gravel and have never had an issue introducing my fish fairly quickly. However, all this stuff with filters and heaters and on and on and on is making me incredibly nervous. O_O I'd very much like to keep it simple, but adding several new guys, it seemed that being able to do set-up with filters would make my life much simpler.
So, I guess my question is this. . . I've introduced plants and cultured gravel into my bowls several days before my fish in the past and have never had a problem with this process. How much is a filter going to effect all of this? The ony thing I would think is that the filter would need more time to build-up some of the beneficial bacteria so as to be able to replenish it in the water?
I've got a ten gallon I'm dividing for two CT I'm getting and I'll have a week and a half to cycle it. A bigger environment, more time. It's just these smaller ones with the filters that are throwing me.