i know forex market is dangerous one, there are many theories teach us how to make money with it. I just want to play safely. Anybody know some tips about forex?

Answer
Ha! the Forex Market a dangerous one? It won't kill you physically but it could maim or seriously damage your financial health!

Basic tips about forex:
1. Have a plan
2. Have a plan
3. Have a plan

A plan is important, you must have an entry execution plan, a trading plan (while the trade is on) and an exit plan. With the plan you must have a stop loss, and its up to you to have a profit target or not depending on your system.

how to make sure investor at forex trading?

Investor want fixed income. That's the character of investor at my country. I am looking for investor now, but my business at forex trading firm. how to make sure the investor for investing at forex trading? If I advertise , what is the best strategy or model ?

Answer
Fixed income is not possible in forex. It all depends on market movements. You can have a strategy- you can make trading targets for example how many hours to trade, income per day target, trading strategy , use trading tools, etc.In this way you can attract customers for investing and can assure your customers fixed income as per their targets.
Be careful while trading with market movements.