So I decided last week and have found it to be a case "works on Paper"
I noticed an exchange with a BCH/USDT 50% higher than coinbase's price for BCH so eyes watering bought some as a test. It was just 50€ to see if it worked. It did not. The problem was the other exchanges BCH wallet was down so i couldn't deposit it in.
Not to be discouraged I have been looking at other arbitrage sites and opportunities and always have the same issue. Basically the wallet of the currency I want to trade in is down This was for EOS BAT and even LTC.

Is arbitrage possible or is it a case of if it seems too good to be true .....