This tank just celebrated it's 1st birthday last week! One thing I can say for certain: it's been a whirlwind of a year maintaining this thing. Since I last updated the thread, I haven't added any livestock (it's fun watching what I already have grow big and thrive), but I was able to get the best of the nuisance algae infestations. A big reason for that was the addition of a Euro Reef CS250 skimmer. The thing is a beast and pulls out a full collection cup worth of thick, dark skimmate every week. I also had an issue with 2 of the 3 400W ballasts and no longer needed that intense of light without SPS, so I took the opportunity to downgrade (or upgrade; depends on how you look at it) to 3x250W HQI Phoenix 14,000K. The change in lighting allowed me to remove the chiller and has saved me anywhere from $50-$100 a month in electricity between the change in lights and removal of the chiller. The fish are all thriving (Sally the Sailfin is now 11) and the softies and LPS look wonderful and are getting HUGE.
I have no regrets going with acrylic; the peace of mind has been great, and the tank hasn't scratched much either. The only thing bothering me about the tank as it is today is how quickly and thick the coralline grows on the acrylic. It's a large burden to constantly scrape and regrows quickly despite keeping my dKH and Calcium levels at the low end of the recommended levels.
The biggest piece of news to report though is that this tank will soon be coming to the end of it's life as a reef. My wife and I are expecting our first child at the end of the summer, so not only will my schedule become strained with learning parenting duties, finances will be EXTREMELY tight due to some personal choices my wife and I have made (the maintenance of the tank and electricity needs didn't come anywhere close to fitting our new budget). Plus, I'm now spending an insane amount of time removing coraline from the tank on a regular basis and would gladly reallocate that time to being a dad.
So, in a few weeks, the 300g will become a low-tech FW planted tank (I've been playing around with these for some time now and look forward to tending a large yet low maintenance tank). The selling off of reef equipment and livestock will help a little in the short-term, but more importantly, will drastically reduce our electrical use and monthly reef maintenance expenses. The only thing I'm not looking forward to is giving up the care of the Sailfin. I've only had her for a year, but it's still exciting caring for an 11 year old tang.
I won't totally be getting out of reefkeeping though. My old 65g is currently being revived as a low maintenance and low electrical consumption mixed reef, where some choice pieces of rock and corals will go, along with the smaller fish that I can't bring myself to part with. Plus, we will also put my wife's 12g JBJ Nano Cube that she keeps in her into the nursery!