That's a great looking tank and I like the idea of the screw in bottom. Couple of questions about it if you don't mind?
1. Are the cartos proprietary? If not then does it take an XL, XXL or regular length carto?
2. I have a lot of tanks and for me, the more airtight the slower they wick unless I add a hole at the top of the carto. Too airtight causes vapor lock where air can not get in to replace the
juice that is getting out. The trade off of course is no leaking due to the tighter seal. How does your tank get around this wicking issue?
3. Looks like a perfect fit for the chrome lavatubes out there, do you have the dimensions available?
Gratz on a decently priced great looking tank.