Talk:Standard O₂ Tank/@comment-190.204.125.118-20150425150330/@comment-99.240.224.60-20150425154811

I'd say the best option for a better tank that's not easy to obtain would be to have an air pressure machine be required to fill the pressurized oxygen tanks. These tanks could hold much more oxygen than the normal tanks, but can only be refilled at the oxygen refilling station. You could also make it so that the pressurizer must be directly connected to the surface via pipe, and must be placed at an underwater base (like the generator). This would make it so that there is a fair amount of setup required. You'd have to put time and resources into the better oxygen tank, and it has to be refuled in a specific manner so you can't just pop into the Seamoth real quick and pop back out again. Of course, with all this setup and the limitations, I'd expect a very large oxygen increase (say two-three minutes perhaps).

Another option would be an air tube. It could connect to either your base, a pipe to the surface, the Cyclops or the seamoth, and provides a continuous air supply as long as you're still connected by the tube. The downside of course is that the tube has a limited length, so you could only go out so far from your air supply. It's not much different from just building more and more pipes wherever you're going, so it's not over powered, just more convenient.