good luck using Exmo  

Fyi this exchange is a half scam ukrainian company
If you plan to cash out there, they will hold your money for weeks maybe months before you hear from them; just have a look to the dismal reviews and judge for yourself
they may exit scam one day or another too

99,99% of the prices differences you may think to see nowadays are due to a reason; either the exchange wallets are shut down, either the network is down, either the low/high price exchange is a total scam that will either steal your money or hold it for weeks, either volatility is insane and makes any arbitrage impossible to execute without risking massive losses

Free lunch days are gone for good my friend

It has become insanely competitive and there is no more money to be made in this field, unless you are an expert in high frequency trading and have millions of dollars to rotate to trade 0,001% profits

There are no more tradable arbitrage opportunities; the ship has sailed months / a year ago
All what is left now are insignificant (below 1%) differences between exchanges that are impossible to trade and extremely high risk