cables and parts for fixture

[fishguyxd]

Does anyone know where in the city (EDM) to get small cable and parts etc (kripping sleeves) any parts store ? Some industral type places or other (rona or hd does not have them) Looking for smaller than 5/8.or if you have past ideas or have seen something please let me know.

Any idea on where to get a height adjustable type part for the 4 ft t5 light fixture/cables over the tank or should I use chain link type idea.

I am also looking how also to stop excess light splashover by placing something of a shade in frt of fixture via velco. vs to having the light only 3 or 4 inchs above.

thanks you all