couple questions on streams

[orb]

hi, setting up new tank, 52 x 28 x 24, and was wondering dimensions of the 7095 controller, to set up pwr panel. i'm setting aside room for when i get controllers. Also, can you recommend pumps/placement for the streams. I probally will only do 2, but may add the deco rock if needed. If i use rock, how long is power cable, or will i have to get an underwater connector to add extension cable? and with rock, do i need to protect the intake more, or do critters etc. kinda stay out? sry for all the questions, thx, lawrence