If you have $15 to spare I highly recommend getting a Beyond
vape Silo Lite:
Beyond Vape Silo Lite Tank Kit with BVC [bv-silo-lit-tan-kit] - $15.00 : Beyond Vape, Premium Vaporizers and E-Cigarettes
It has a 3.5 ml capacity, larger airhole, comes with 2 drip tips, and the best part is it uses the coil heads you already have (Aspire BVC). I've owned a hundred
vaping toys and this tank is the only one I've used since January. If you buy one, toss the heads it comes with, put an Aspire in, and you're good to go.
Note: I notice both tanks you're asking about use eGo threading, so depending on your device you may want an eGo thread collar for the Silo Lite ("collar", "plinth", "cover", "cone" - same thing).