Here is a gas blender program the quotes the weight of the filled tank for the selected mix . Here are some current tanks including carbon wound . It ' s my stuff so you can just use it no worries . Beware of creating a tank that is buoyant forcing the diver to carry additional weight to actually dive it . You then end up with a combination that is heavier out of the water to achieve neutral when diving . <| sep |> Haha , when I run Endless FG with Quaid lead and Holia friend , pair that with the Full Boost or whatever with 50 % HP and an Azurai BB 15 % health , my Quaid reaches 48 K HP no problem . Quaid is Anima , Meirith Pearl and Cosmic Dust , Elgif Brave Contemplation , SP Option 20 % HPDEF . Not to mention he was a yolo summon back when I was a newbie , and he got me through a lot of content .