Invest or open an account? Either way it will depend on the broker you choose. Micro accounts are available on many sites, but with a lower investment you will see a lower rate of return, and one bad day could wipe you out if you aren't careful.

Micro accounts can be opened for $25-$50. Make sure you understand how they charge you for their service (built into spread, commission based, etc). Good luck!

$25-$50 is the lowest you can invest but I would recommend you start with more than that.Here's a website you can start with $100 http://www.fxpro.com Then it goes up from there a mini account is usually $250-$300 and more.The normal size trading account minimum is usually $2500.I just personally don't like the cheap platforms the ones where you can trade with $25.The charts n all that are not good at all.That n like I say you can only really make nickle n dime profits.Thus more money equals more leverage which means more profits.I always say first get educated n practice trade for a while at least a month or so before you start trading with actual money.Always remember the is substantial risk involved with forex as in any other investment.Hope this helps you out n the best of luck to you.