I'm trying to send dent from mew to exchange...do we need eth balance for gas? What's the gas limit? Will 21000 work?
Better to set higher gas for your transaction. I was used 100k as the gas and yes, it needed some ETH balance.
All my dent is stuck in hitbtc.
Watch this exchange carefully!!!
What do you mean by stuck?
I recommend to use this tool to calculate the gas and gwei for your Ethereum transaction. I usually use Standard gwei to make my transaction be smooth and get confirm fastly. Beside that, if you want to use gwei with your idea, you can calculate the max fee can spend and time to get confirm on this site, it is very good.
This tool here:
https://ethgasstation.info/