Below is from my build thread. I love this tank. It has been perfect for an office tank. It is excellent for being able to have several fish as well as being easy on maintenance. The length gives you multiple chambers in the back for lots of different options for filtration.
Tank Selection
-Tank Size: I was cautious of the size for a couple of reasons. I wanted something large enough to have several fish and house corals; however, not so large that tank maintenance and water changes became an issue. With a 30 gallon, I have enough room for 4-5 fish, and a 10% water change each week will only be 3 gallons.
-AIO: I wanted an all-in-one due to a reduction in plumbing and less chance for an issue to occur while away, such as a clogged overflow or return pipe.
Redundancy
-My goal is to switch the plumbing in the back for the return pump. Currently, there is one return pump with a split hose that goes to two returns in the tank. I plan to put an additional pump in the back and change the divided hose to two individual hoses that go to one return.
-Additional heater in the tank in case of a failure of the first
Filtration choices
-As this is an office tank, I don't want to be transporting dirty filter socks home every couple of days. I plan to remove the filter sock and put a media cup in its place. Then fill the media cup with filter floss.
-I went back and forth on a skimmer as it can be a mess to clean in a communal sink; however, I did decide to go with it.
-Additional filtration with media blocks.
Automation
-I haven't picked it yet, but thinking about buying it at Tunze Universal 3155 ATO. I had initially thought to save money, and I wouldn't buy an ATO and top off each day. However, I am leaning towards an ATO when thinking about it more.
-Auto feeder for weekends and holidays. I love feeding my fish because they get to know you as the food person, but I think it would be better to set up an auto feeder that way, it will be a consistent feed every day, and the fish can eat on weekends. I plan to do flakes and pellets, and then maybe a couple of times a week I would feed frozen.