Crypto currency trading is the foreign exchange (currency exchange) of crypto currencies. This means, you might be capable to alternate exclusive bit coin and altcoin almost always for USD and BTC. Crypto foreign exchange is a replacement technique to get concerned within the Crypto-World! It doesn't require mining hardware nor investing in bitcoin hyips or bitcoin cloud mining.
One huge advantage over Forex are the low spreads. The spread is the difference between the ask and bid price of the market maker.
Spread Example: Let us analyze the spread of EUR/USD. The ask and bid are 1.0933 and 1.0931 respectively (data from 27.02.2016). The spread is 0.0002. Percent-wise, this is a spread of 0.0002/1.0933 = 0.018%
Now let us see the spread in bitcoin to USD. The ask price for 1 BTC is 429 USD, while the bid price is 428.999 USD (data from 27.02.2016). This equals to a spread of 0.001 USD or 0.001/429 = 0.0002%.A smaller spread means, that when you exchange, you have made nearly no loss. On the contrary in Forex (btw. other than EUR/USD have even higher spreads) after you exchange, you have already made a loss of 0.018%. This is not insignificant.