small or clear plumbing parts ?

[PepperDeath]

im buliding a 4.5 gallon with acrylic and i cant seem to find any loc line of fitting smaller than 1/2 anyone know where i can find this stuff and a small nozzle...also if it was clear that would be awesome

 

[PepperDeath]

here is some pics if the tank

 

[LukeG]

You might have to go with vinyl tubing. Very nice little tank. Are you going to keep the entire thing clear?