I was wondering if there is a required amount of bitcoins you need to have before you start trading? Also, a little out of topic, but is there a required amount that a person needs to be earning per month before he could start buying bitcoins?
There are not any set amounts that you need to have before you begin to trade, however you need to take into consideration that exchanges do not provide their service for free and they charge for every trader that you make in their platform and they also charge for withdrawing your coins form the exchange so if you are a day trader the costs can accumulate very fast and you could lose a huge amount of money just in fees alone.
So you need to take that into consideration before becoming a trader and always try to have more capital at your disposal because when you are a good trader the more capital that you have the more profits you can generate in a short amount of time.