So let's say I've found two different exchanges where prices of selected cryptocurrencies is varying quite a bit.
How to arbitrage? Should I buy some BTC at let's say 3.700 then send this amount to second exchange where I will sell it for 3.900? The profit here is that I have more fiat and I can't really multiply this process (or maybe I can send earned money to the first exchange again, but it takes a lot of time). Am I seeing this right?
This is the real basis for an arbitrage which taking advantage of a situation where you can find two situations having different figures so you can buy in one and sell in another one and possibly makes some profits. However, this is not anymore new but if you think you can make some profits doing it then I guess you should try it.