It all depends on what you want. Depending on how you do the AIO, you'll lose probably 6" of space at the end of the tank, making the display area 30 x 16 x 20. IF you feel you can afford the loss of display space, go for the AIO simply because it's easier. If you feel you need those 6", go for a sump. If you do an AIO, use automotive window tint to hide the AIO area somewhat, so the equipment isn't as easily seen.
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Calvin
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Planning a 29 gallon mixed reef...
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