What is a decent amount of Bitcoin you should have to make day trading worth while?
For me, as I trade I put all my money 50% for Bitcoin and the other 50% will be trading for altcoins, but of course I only use 10% per trading different kinds of coins.
Trading with a 10%, hmph
that depends on how much is it. Maybe trading with $100 will be worth it, while you make a total Investment of $1000. Some people will also trade with $50, but I prefer $100 on a minimum, cause I prefer to win something of a decent amount, I dont mind losing hundred bucks in a day trade.