Yes I have got ETH on Metamask.. one time more than I need for transaction. Do I need some ETH on my ether wallet as well?

Hello I need help pls.. I have ETC on Myetherwallet and I wanted to transfer ETC to metamask but it showing me only error like I got insufficient founds fortransaction but I have anough. Also My ETC apearing like ETH in Metamask so maybe this couse problems.