My wife and I (living in Sacramento area) are currently checking out which tank to upgrade to, and we've gravitated toward the half circle shape. Oceanic made a great 144 gallon version, but I've been told they have since gone out of business. Does anyone have any experience with these, or know of anyone looking to part with theirs? We currently have a 70 gallon round with overflow, and no sump. We love it, but we just want to go bigger and love the curved vs straight tank sides. So 144 gallons and up would be great. Thanks!