210 gallon glass tank with two overflows - $800
Overflow kit - $100
Stand (built by my fiance to save money) - $250
Canopy (also built by my fiance) - $75
Berlin Turbo Classic protein skimmer - $200
All-Glass model 4 sump - $360
Mag Drive 2400 pump - $150
Turbo Twist 18 watt UV sterilizer - $140
Compact flourescent lighting - $300
250 watt Stealth heater - $20
The Filter Guys Ocean +1 75gpd RO/DI 6 stage filter - $300
Aquatec 8800 pump - $100
250 pounds of live rock - $1,500
250+ pounds of live sand - $200
4" Magestic angelfish - $150 (got her 50% off though!)
4.5" Emperor angelfish - $150
22" Snowflake eel - $170
8" Volitan lionfish - $80
5" Dogface pufferfish - $70
5" Spiny box pufferfish - $80
5" Harlequin tuskfish - $110
3" Lawnmower blenny - $25
2" Cleaner wrasse - $30
2 Mexican turbo snails - $20
Fish that are no longer with us:
4 giant hermit crabs - $80 (3 eaten)
Cowry snail - $20 (eaten)
Antennata lionfish - $35 (refused to eat)
Two volitan lionfish - $70 (refused to eat)
Picasso triggerfish - $30 (given away - too aggressive)
Snowflake eel - $30 (died for unknown reasons)
Spiny box pufferfish - $80 (velvet)
12 urchins - $250 (all but 1 eaten)
Gold headed goby - $20 (eaten by Snowflake eel)
Tiger goby - $20 (went through the sump then when found and put back in main tank was almost immediately killed by trigger)
Clean up crew - $200 (mostly eaten)
5 gallon buckets (10) - $50
4 nets of various sizes - $20
Water syphon - $15
Algae scraper - $18
Misc (feeding sticks, etc) - $40
Air pump, tubing, valves, bubble wand - $60
Powerheads - $30
Current tank and fish = $5,613
Tank and fish (including deceased) = $6,448
Not including any salt, food, vitaments, supplements, and anything I forgot.
EDIT: Every time I think about this thread I keep remembering things I forgot. Glass tops, power strips, lunar lights, seaweed clip, battery operated back up airpumps, testing kits, timers, extension cords, GFI outlets, pvc plumbing, media bags with GAC and Purigen, automatic feeders, egg-crate top, glass cleaner, etc which cost probably about $500 for all the "little stuff" I left off. And now I remember why I don't have beer money... we're still in college.
Oh yeah and I have a 30 gallon FOWLR tank upstairs and I just spent $600 today to buy a 24 gallon nano reef. I need to hire someone to stop me from spending more on my fish!
So my best guess for my 210g is $7,000. For the other two saltwater and my freshwater tank... probably a little shy of $10,000 all spent within the last year.