What minimum Take Profit can be set to make a profit?

The minimum Take profit when it is set up and while bots are running is 0.1 %. 

Recommended Take Profit 0.5% – 1%

Pay attention! For coins with a low cost, less than 100 Satoshi, the take profit level must be set at 4% or more. 

When the price of the coin is less than 100 Satoshi, rounding come into force and if you put a small level of TP, the bots can trade in minus. Most trading pairs with low cost are fixed automatically.  The system will not allow you to set a too small TP level when creating a bot, but there are also non-fixed pairs, be sure to pay attention to this nuance when setting up bots.