[fishscale]

The depth won't matter much, read Rex Grigg's site. There's a snippet about how it won't make a difference until about 3 ft. It'd be easier to tell you if you had enough light if you gave a specific model of light. I would bet it's enough, since the T5's that come in that size are 18W. If you went by WPG, you'd be just under 2 wpg, which is perfect if you don't want to use CO2. You can grow plants with less than 2 wpg. You can even grow dwarf hair grass, as shown by the Senskes. Based on your list, you shouldn't run into too much trouble if you play it right. You might have some problems keeping your E.T. growing low, though.