You might actually shorten the tubing to reduce the bend in it. The Mag 3 is kinda heavy and I'm sure that's why it's hanging crooked. You could move the pump down some, but I don't thing I'd want it sitting on the sand. Too much chance of sucking up things you don't want it to. You could get a surface skimmer which will hide the pump...more money though.
Life is not measured by the number of breaths we take, but by the moments that take our breath away.