If it is the Oceanic 140 with the awesome footprint you'd be nuts to let it go. There is enough space in that tank to grow out several varieties of corals and fish.

I have one question and that is with 6 tanks running in my house simlar to your setup I only saw my electric bill raise $70 total. I'm wondering if removing a couple of tanks will make a significant difference? Just as soon as July came I noticed about 10 people complaining about their electric bills. Sure seems strange that they could all afford tanks in december but not in July, hmmm could it be the added cost of air conditioning and not the tanks? I found that my local utility in Austin liked to "estimate" my usage in the spring and then hit me with a huge bill in the summer. I'd go from $100 a month to $400 in one month. It had nothing to do with AC or tanks just them being to lazy to come by every month. Also estimating in the spring and then hitting you for the difference in the summer benefits them more because of the added fuel charges and such to discourage over consumption in the summer. Basically your 10 cent per Kilo jumps to 20 cents per kilo and it's much better to bill for the higher rates.

I caught my supplier screwing with me by taping a piece of paper over the meter. I had called the electric company to complain of being estimated and they swore they never did it. So I taped a piece of paper over the dials in a way that the reader would have to remove it. Not in 2 months was it touched. I called out a rep and had them look at what I ahd done and he agreed that there was soemthing wrong and I was refunded my differnce from the highest bill.