I would recommend extra tubing just because the stock stuff normally isn't the best, also gives you room for redoing it incase you mess up the first loop.
You will need some distilled water which can be picked up from the local grocery store. Make sure it is distilled and not spring water.
Also get a silver kill coil with your kit.
One of these
The plugs only work if they are submerged. I have the kill coil and it works great. Never had algae of any kind in my loop. When it tarnishes you just wipe it off and recoil it around a pencil or something round