75gal make good reef tanks. Here is a "shopping list" based on my 75gal reef:
1x tank
1x stand
1x T5HO light fixture 8 bulb
4x white bulbs
2x pink bulbs
2x blue bulbs
1x overflow
1x prefilter sponge
1x 30gal sump
1x filter floss
1x filter sock
1x 5lbs live rock for sump
1x return pump
1x aqualifter
1x 50ft of aquarium airline tubing
2x flexible tubing 4' (going to be cut to size) for overflow and return
1x return spray nozzle
1x small drill (for drilling hole into return nozzle to prevent backsiphon)
6x 20lb bags of argonite sand
1x 70lbs of live rock
1x magnet glass cleaner (or acrylic)
1x saltwater buffer
1x Reef part 1 (supplement)
1x Reef part 2 (supplement)
5x 5gal buckets (always good to have)
5x 2.5 gal buckets (always good to have, too)
1x 50lb box of reef crystals salt mix (assuming 75gal + 15gal in sump)
1x siphon for water changes
4x powerheads (two in the tank, one for mixing salt, one in QT tank)
1x hospital/ quarantine tank (10-30gal)
1x HOB filter (for QT tank)
3x PVC elbows (for QT tank)
6x raw table shrimp (to start cycle)
1x API saltwater test kit
1x API saltwater reef test kit
I think that's everything.... whew.
