Every exchange has a minimum order size. Generally, trades amounts should be at least $20. To ensure your trades and bots are successful, check the minimum amounts for each exchange before configuring your trade.
Binance: https://www.binance.com/en/trade-rule
Bitfinex: https://support.bitfinex.com/hc/en-us/articles/115003283709-What-is-the-minimum-order-size-
Bitstamp: https://www.bitstamp.net/fee-schedule/#min-trade-amount
Bittrex: https://bittrex.zendesk.com/hc/en-us/articles/360001473863-Bittrex-trading-rules
Coinbase Pro: https://help.coinbase.com/en/pro/trading-and-funding/trading-rules-and-fees/limits
Kraken: https://support.kraken.com/hc/en-us/articles/205893708-Minimum-order-size-volume-for-trading
KuCoin: 0.1 USDT
HitBTC: https://support.hitbtc.com/en/support/solutions/articles/63000224994-is-there-a-trading-minimum