- Introducing the Tigon tank, an easy to use ‘child safe’ compact tank from ASPIRE. It comes in four stylish color finishes, Stainless Steel, Blue, the ever-popular Rainbow, and Black. It can be used as an MTL (mouth to lung) or a restricted DTL (direct to lung) vape. Whichever size you choose, you can be sure of a great performing tank with great flavor an vapor production. It is the first Aspire tank to use an ingenious design that will seal the wicking holes in the tank when the coil is removed.