hi, i have been looking into getting a second light tube for my tank. I have been researching for months now and im baffled!!! the tube i already have is only a 30w and thus i only get 1wpg. (i already dose co2 and ferts). i have decided to get a t6 tube (30w t6) as they have a higher output than t8's but the fit the end caps etc. so i want to get a single starter unit, i have settled on this, Arcadia Ultra Seal Fluorescent Single Light Control Units. along with this and the tube, i dont know what else i will need. things like clips/brushings, waterproof end caps etc. there are so many things i need (i think). so can someone try to give me a definitive list for what i will need and where i can get it from, so i know what to buy, as i am sooo confused. ??? i would like to get as much of the stuff from one place to save on delivery charges. thanks. any help will be immense as i feel so dumb when it comes to lighting!!

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