Basement 280 Gallon Build:

[Delphinus]

You will always appreciate more front-to-back dimension. 24" seems like a lot, but when you consider 30" of height, 24" will seem smaller. For example if you were to flip the dimensions so that you had 30" of depth (front to back is depth) and 24" of height, you'd need less light intensity AND would have much better options for aquascaping.

I have my tank in a similar configuration, except mine is 72x30x30 (also coincidentally 280g). It is not accessible in front at all so I do have to do the wet armpit thing but that I don't mind so much. I wanted the 30" height for visual appeal and swimming room, but if I were to go back I'd go shorter because it's dificult to get enough light to the lower levels. All was well when I ran 400w halides, but then I switched to LED and things just were never the same. I'm actually considering going back to halides. LED just doesn't compare with this height, you wouldn't think 24" vs 30" would make such a difference but it really does.