I had a 20G long tank a few years ago and to get it set up id say I had maybe 300bucks into it. Right now ive got my 55g going with a few corals and fish in it. Ill give you a breakdown on that.
Tank (Not Reef Ready) $55- Petco Sale.
Stand - traded for it, but youll be looking at $100.
CPR Deluxe Overflow box $120 (BRS)
Seaclone Protein Skimmer - $90 (Get something better)(Dr Smith & Foster)
Mag Drive 9 Return - $90 (Dr Smith & Foster)
Misc Return line Parts - $30-$60(Dr Smith & Foster)
2x 200 Watt Aquarium Heaters $15 Each (Junker from ebay)
10g Tank $10 - Petco Sale(This is my temp Sump)(Baffless)
Filter Sock Holder w/ 1 Sock - $20 (Ebay)
Spare filter sock - $6 (BRS)
Reactor - $40 (BRS)
Pump for Reactor - $10-$20
& Carbon $20-$40(BRS)
Flex Hose - $15 (ebay)
Glue - $ 5 (Make sure its drinking water safe)
Live Rock 14 Pounds - $60 / $6-$7 a pound(Better off 99% Dry Rock)
Dry Rock 32 Pounds - $64 / $2 a pound (Reefrocks.net)
60 Pounds live sand - $75(Better with dry sand)(Amazon)
Odyssea 216Watt T5HO Light Fixture - $120 (Aqua Traders)
2x 800 GPH
Powerheads - $55 (Off Brand from Ebay) Get ones with magnets Suction cups are junk.
Instant Ocean Marine Salt - $55 for 200G Box(Ebay) Which Last me about 2-3 Months
Unit - $65 (Ebay) Works alright but im going to upgrade instead of replacing filters
I Dont think I missed anything other then my live stock with is around $200. If youve got got any questions feel free to ask. Also keep in mind that a 55g tank.
Other Please Chime in on you to date tank costs.