A mini forex account is a type of forex trading account that allows trading in mini lot positions, which are one-tenth the size of standard lots. Your Money. If it changes to 1. Understanding how to trade foreign currencies requires detailed knowledge about the economies and political situations of individual countries, global macroeconomics and the impact of volatility on specific markets. In the world of forex, this represents five standard lots. Some brokers also permit trading in nano lots, which consist of a single currency unit. Your Practice.