wondering if anyone has this size tank (36"), and if so, how do you light it? I have a 55 gallon tank and light it with (I am getting one more 2 light fixture for it) 4, 40w, 48" gro lux. I am having a bit of trouble finding a 36" fixture for the 30 gallon tank. I am looking for the same two bulb set up as my 55 gallon tank has. Any help with this would be great...