I have mine about midway up the tank, and in a spot where it gets maybe a little higher than medium flow. Enough to keep it constantly swaying pretty good, but not blasted to the point it closes up. I'd give yours some time to get used to the tank. If it ends up opening nice and wide where you've got it, then I'd leave it...if it's still closed up after maybe a week or so I'd try a different spot in your tank. I'd also keep in mind that torches don't play so nice with others, so they definitely need some space away from others wherever you decide to put it.