Note:
1. For details about the operation conditions at Forex see “Trading Rules”.
2. There are no official restrictions to minimum deposit, as it is floating and depend on the trading tools set, and their quotes. Right now minimum deposit for AFM is $263, for MT4 — $53. With such amount at your account you can open one lot NZDUSD. But you need to remember that opening “with all money” is risky. It's better to have some reserve funds. For details, see paragraphs 2.5, 2.6 and 2.7 “Trading Rules”.