Forex Indicators - what is tha potential of makng cash trading forex on a 15-30 mins chart?

what is tha potential of makng cash trading forex on a 15-30 mins chart?

forex traders can answer this

Yes there is potential. Trade the news. Know the times the economic data is coming out and guess which way the chart is going to react. Use technicals: candlesticks, support/resistance, EMA & MACD or RSI. Good Luck.
If you have to ask this question it would be wise that you stay away from this all for a long time, as you obviously miss the experience for the market at this point in your life. Learn, practice a long time etc. before you start to do this for real or you will end up losing everything... And yes, there's a good potential in the Forex trade in general, as long as you know what you are doing AND even than you will lose out on some of your positions.
I have done quite well with the 15-30 mins chart but then you have to get other things right and know when to enter and exit to win. I use Forex Killer and it has helped me a lot since I started it. I don't totally depend on it but it aids me to give signals.