Just curious and wanting some opinions on the waterbox lx 320. Thinking of buying as a gift for my husband. Does anyone have one already and if so would you recommend it? Should we go with the 320 or the next size down? We have a 200 gallon as of now. So not wanting anything smaller than that. Also, how long does it take to order and get shipped? The website doesn’t have the option to buy one yet, that I could tell. Thanks in advance.