I found a local guy how’s doing very good aquariums, so finally I have decided to go with a bigger discus tank. Tank itself would be 5.25feet x 2.3 x 2 (160 cm x 70 x 60) = 177g and sump 39" x 20" x 20" 100x50x50) = 66g. Both tank and sump would be drilled for the overflow, so I can mount drip system. All in total, I think it’s a good deal: tanks, lid, pipes and drilling for 400$ only.
Can you you help with a design? What would be the best design for a sump? How many partitions and arrangements of baffles?