Hey guys, I have had a 13 gallon Aqueon tank/kit for almost a year and a half with an ocellaris, coral angel beauty, and bi color blenny. The small tank is pretty involved to take care of, plus I would like to expand my collection (I am going off of information that bigger tanks have a stronger "ecosystem" and help take care of themselves a little more). I was thinking of also putting an anemone in the new tank. I'm looking to upgrade to something with more volume, but able to fit into a 24"x20" footprint, most likely the 20x20x20 by deep blue professional (35 gal), or if they make custom, get something a little bigger, maybe like 45 gal. Anyways, since my first setup was a kit, and this new one will be pretty much starting from scratch, I was curious as to what else I will all need. Also, currently I buy the real ocean water in 5 gal boxes at petsmart, but it seems like that would be pretty expensive for anything over 25 gal. Can you buy in larger quantities or is it better to buy an RO system and mix my own? Currently I have: BioMaxx pump (for up to 30 gal) Hydor slim nano skimmer (says its rated to 35 gal) 13 lbs of live rock 5 lbs live sand 8 snails, 2 hermits, 2 emerald crabs Any help is definitely appreciated!