Yes you can, but thats a very labor intensive way of keeping your res cool... i was just saying if you going with a waterfarm module they have remote res. unlike most ebb & flow tables, so all it would be would be running a couple lines though your wire socks.
In regards, to the 600 watter, i don't know what Secret Jardin you go but if your siting a 6 module WF in there you mush have atleast a DR120. Now please tell me you got the dark room and not the street version..... But if you just get a fan and air cool that lamp you should be golden.. just my 2 cents...