Well, how much experience do you have and what do you want to accomplish?
Not much, just trying to figure out ideal amount to start that activity. probably will be useful for me, or people who are willing to be a good trader.
first you should be ready for the consequences of being newbie trader,that your
capital might go to nothing,because so far daytrading is really a pain in ass.the price of
bitcoin is so high that not even alts can make any movement
.you can start by 0.5 eth thats enough for you to learn right and mistakes in trading
But if i were you try to put it in long time investment when ethereums price surely
increase by next yesr