My Largest Aquarium Ever. I waited a long time to set up my 220 gallon planted tank. I sat and stared at it for 2 years. What is cool is that I filmed the whole thing from start to now. Enjoy my 220 gallon planted fishtank. This tank has been all different kinds of both Sexy and Ugly. Love showing it off to you all. This 220 gallon fish tank is the catalyst for my YouTube Channel and my love for the aquarium hobby expression outlet. The large aquarium isn't always the easiest to maintain. Setting up a Large Aquarium can be a challenge as well, you have to set up your Aquarium correctly from the start. There are some mistakes I made when I setup this Large Aquarium, but I think it is worth it in the end. less