Of course it's a good idea to day trading eth.You can earn handsome money by day trading. But in order to do that you should have a good Knowledge about day trading or you can loose money.
Its true, doing day trading is not a straightforward thing because it is not uncommon for many traders to experience losses in each of their trades due to a lack of knowledge in reading a chart of alt coin price movements in the market, it is very risky if we do daily trading only relying on instinct because we don't know when to sell, buy or hold is right.