[Mr. X]

I appreciate the advice & insight Dave & Covert. I bought the shortest float line available at the time, which I think is 20m/66ft but I've picked up a few other lines since which I could try. I generally avoid diving deep, so 15m (or pos even 10 or 12m) will probably be enough. I should probably get some aquarium air tube, I imagine it would tangle less.