How do I add to my portfolio ? 
Discussion
If it's showing sell for +0 it means you have mined too little to be able to sell it. You need to upgrade and unlock more coins before you can do it.
How do I add to my portfolio ? 
If it's showing sell for +0 it means you have mined too little to be able to sell it. You need to upgrade and unlock more coins before you can do it.