I haven't tried Dtube yet. I've been making my posts using Busy. They have a bot that gives an automatic free upvote if you add the busy tag to the post. Or at least, it's supposed to. My last couple of posts didn't get hit for some reason, so maybe it's down for maintenance or something. Before that I was getting about $0.60 to $0.70 per post, which is a nice bonus. I think the amount is dependent on the steempower of your followers.

Anyway, sorry I can't help regarding Dtube. I really don't know anything about it.