Every one says and telling me that I really should have a proper light for growing live plants. I found this at Petsmart online... for some reason they don't carry these in store. wierd.... Zoo Med AquaSun Dual T5-HO Double Light Linear Fluorescent 30inch Which bulb would I use? Aqueon® T5 Fluorescent 6.7K Lamp OR Aqueon® Full Spectrum Daylight T5 Lamp -> honestly I haven't a clue of the difference. And slightly off topic... the canopy is 30 inch, what size bulb would it be, it doesn't state? 24" or 30"