When I started I was told to figure $40.00 - $45.00 per gallon in equipment set up and livestock! That doesn't even come close - TRUST ME. A 210 gal reef, sump assembly, MH lights, VHO lights, nite lights, plumping, gadgets gadgets and more gadgets, test kits, power strips, timiers, live sand, live rock, fish, inverts, corals, food, addatives, salt mix, scrapers, etc. Have to have a very understanding spouse and don't ever say a word about her $100.00 shoes or hand bag TRUST ME. Actual accrued cost (9/29/06) will be one year of opperation will be approx. $9750.00. Well that comes out to $46.43 per gallon over first year! Now if you thought home owning was a money pit - get really hooked on a reef system!!!!!!!!!!!!!!!!!1