I had 4 tanks up until this summer.
150g, 90g, 70g, 40g
We went away on vacation and our home was struck by lightining burning everything up on the one circuit (1 fish tank - 150g).
It also tripped something with the A/C unit and since there was no a/c caused the house to go well over 100 degrees which friend the other 3 tanks. We had over $22,000 just in our 2 reef tanks because of what we purchased. We were always on the hunt for expensive and hard to find corals, inverts etc. We had a real rose tip anemone that cost us $400 that everyone said would die that we kept for well over 1 year before this accident.
We had puffers, sharks, triggers etc in our agressive tanks (150g / 40g) and all kinds of corals in the 90 & 70 gallon tanks. Here is a URL to some old pictures of my tanks, these are a few years old when they were first being established and were first stocking the 70 gallon and had just built the 150. We build the stand and everything ourselves, which saved us a ton and was a lot of fun.
We also build our own refugium and everything for the 150 gallon. We called it "150 on a budget" I think the entire tank / stand / equipment cost us $275 to build. The fish were more expensive than that I believe when you also add in live rock, sand etc. I even helped start a saltwater fish site that seems to be doing pretty well.
Anyhow here are the pics of my tanks back when we first started them.
My old fish tank pictures
BTW: I live right down the street from the largest coral propogation facility in the world (50,000+ gallons of croals) Check out their site
http://www.tropicorium.com for anyone who lives in Michigan I suggest checking them out.
Andy