Best filter for H1 Chart?

Hello FF,

So here I am again, bothering you rookie questions

I am looking for the best filter (most likely MA) for H1 chart, so I can buy above it and sell below it.

I am working on a EA (will post it for evaluation when done) which will place buy or sell orders following the previous candles direction when a new candle opens (on H1). The concept works with a trend but it will lose when a trend change. Of-course I have plans to place SL but even so, I think placing a MA filter will reduce the amount of reverse moves.

I heard EMA 200 (close) is a good filter for H1 chart. Not sure. Right now I am working with the codes, will try different MAs later. I'll be really grateful if you could kindly suggest me some numbers/methods.

Thank you for you time
I hope I would be able to make a long term profitable EA with your help.
Have a nice day.

Why not do some optimizations in Strategy tester to find the best filter for your EA? Test everything you can think of over the last 3 months then test other periods once you find some 3 month setting that work and see if they hold up in other time periods.

For what you are describing I would use a combination of 35SMA & 50EMA, so for example if price is above both you buy. In addition, if price is extended many pips above or below these MAs it tends to reverse back to them. So you may have another filter that if price is x pips above the 35/50 it should stop trading long (e.g. x>100pips).