fluid_tanks.register_tank("fluid_tanks:tank", { description = "Fluid Tank", capacity = 8000, accepts = true, }) minetest.register_craft({ output = "fluid_tanks:tank", recipe = { {"default:glass", "default:glass", "default:glass"}, {"default:glass", "default:steel_ingot", "default:glass"}, {"default:glass", "default:glass", "default:glass"}, } })