it is very difficult nowadays to benefit from short-term trading,. even a 15% / day profit becomes impossible for the current price situation..
there may be some trading strategies that you can suggest here. bittrex is the place for me to trade
1. what coins you use for short-term trading
2. what time do you usually trade
3. how much profit you can with your strategy (profit / day)
Short term trading is little difficult now because transaction fees and trading fees are fixed in all the trading so you should carefully choose the promising platform but right know many cheap altcoins are fairly growing in the market. So my strategy is holding the investment don't invest in short term trading but midterm trading is good for current scenario.