By this infinity grid it's mean you want to make sure the program will stop when it reach the lower ?

Answer

The lower price only for a minimum value for bot to put the buy orders. Below the lower price, there will be no buy order. Even so, if the price is going way lower than the lower price, the bot still running and waiting for the price to go back above the lower price and fill the sell orders.

On the other hand, you could also put a stop-loss trigger price so you

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