In Aeron EA, you can use it in any timeframe. It updates the grid settings almost all days depending on how volatile the market is on that day. On the other day grid, the distance on EU can reach 75 or 140 points. That only shows that the time frame is not really a factor. You can use it on any timeframe. The manual states that it should only run on EURUSD M1.
If you try it in two backtest using the EA’s default EURUSD M1 with 15 points( 1.5 pip that is) fix spread using tick data. Though I understand that this is a high risk grid martingale but this is a good grid martingale. The EA can run for long hours, so to speak. It survived until February and May. There is a present version of this Aeron EA. This is based on the grid trading. It does not use pure grid trading.
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The grid trading style is uses is very smart and safe. That made this Aeron EA more safer to use that the previous EA which as I said earlier that it is a grid martingale. Both grid and MG’s are not really safe of course, but you ca make it smarter. Though one may should take note that you should find something where the DD is not too high and the profit is at least fair enough. But then as what they say, without deep pocket and easily survived at least level 12 , it’s hard to play MG. Then again, if you can’t afford to lose something, never play this one.