There is no need to mix up things from two different world. The crypto currency trading is having its own set of rules due to state versatile nature. As there is no control over the crypto currency from any governing body as well as it can be vastly manipulated in no time that’s why it doesn’t depend on the ways of forex trades. On the broader perspective you should be fine if you know how does it work in here. All the decentralisation blue print is what you should focus on.

If you trading it, then there is versatile portfolio for you to trade. You can choose different analogies here and apply different scripts as and when you see the opportunities coming up front.

Whether the spread of crypto is same as the forex or not I do belive that it is not major concern if you just focus on the crypto.