That's pretty normal for a .5ohm coil and subohm tank. Sobohming uses a lot more liquid, and some subohm tanks can use up huge amounts of liquid.
I have a Kanger Subtank Mini. With it running in TC mode I typically go through 5-6ml of liquid per day. On weekends when I'm sitting around doing nothing I go through even more than that.
But I also have a Herakles V2 RTA tank. Using that I can go through 6ml of liquid every 4-5 hours.
I also have an Aspire Nautilus tank with TC coils. Using that I only go through about 2ml of liquid over the course of 8-9 hours, but the Nautilus is NOT a subohm tank. It's designed to use coils that are 1.5ohm or higher.
So different tanks use liquids at a different rate. I don't have any experience with your specific tank, but in general going through 6ml or more in a day using a subohm tank is quite normal.
great. That info was perfect. so my tank is a juice gargling machine lol. Thanks.
I wish i could explore tc mode like you do. I cant do it because of my coil i think. Or my rx200 is broken. Lol. Still have no idea.