I've just begun setting up my grow rack and unfortunately for the life of me I couldnt' find 4 ft shelves which would obviously be more desireable due to the size and the fact that flour. lights are more common and economically in 4 ft sizes... well. it didnt happen that way so I ended up with a 5 tiered 3 ft wide rack and of course there are 3 ft flour. light fixtures that I can buy but I recently saw a T5 light fixture for 2 lamps for 40 bucks but their only 2 ft long... should I go with the short t5's ? or just buy standard 3ft fixtures...
all help is appreciated