I am wanting to upgrade from my one bulb fluorescent in my 90 gallon to something that will enable me to have corals. This is the one light I am considering.\n \n48 Inch 6x54 Watt AquaticLife T5 HO Light Fixture w/ 4 LEDs Information \n[URL="http://www.marinedepot.com/AquaticLife_T5_HO_6_Lamp_Light_Fixture_w_Lunar_LEDs_36_Inch_T5_Fluorescent_Light_Fixtures-AquaticLife-AK01191-FILTFIT56U-vi.html#Manuals"]Product Manuals & Documentation[/URL]\n\n\n[IMG]http://c1.f3images.com/IMD/Vendor_Logos/AK.jpg[/IMG]\n[B]AquaticLife Light Fixture[/B]\n\nSix-Lamp T5 HO Light Fixtures\nProduce more light in a compact housing with these new six-lamp High Output light fixtures.\n\nThese AquaticLife™ T5 HO fixtures offer 420/460 nm, 700+ nm and Lunar light in one streamlined unit. \n[LIST]\n[*]Timer controls T5 HO Fluorescent Lamps and Lunar LED's independently\n[*]Built-in Fans keep fixtures cool and direct heat away from the aquarium\n[*]Adjustable width Aquarium Frame Mounts support fixture above the aquarium\n[*]German-made individual reflectors maximize light by directing it into the aquarium\n[*]Suspension Ports allow connection to optional cables for various mounting configurations\n[/LIST]\n(4) 48" T5 HO 54W Actinic / Blue Lamps\n(1) 48" T5 HO 54W 10,000K Lamp\n(1) 48” T5 HO 54W Purple Lamp\n(4) 1 Watt Lunar LEDs\n \nMy tank is 48 inches long by 18 wide and 24 inches deep. I would like to be able to have any type of coral without worrying if I have enoiugh lighting. \nI'm just wondering if this would cost a lot to use, on my electric bill, and how much are bulbs to replace? \nOr what is a good economical LED system?\nWould the marineland reef ready system work?