Sorry to dig this thread up from the grave, but i have just found it on google & felt compelled to write something
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Not one post here understands money management.... simply put it is "the % allocation of your capital that you put into each trade".
Most professionals will tell you that 1%-3% of your "bank roll" per trade (or coin) is a good risk strategy.
So for example if you start with $3000 and then decide on a 1% money management strategy, you will put $30 exactly into each coin you buy.
You then need to rebalance your stakes if your "bank roll" increases or decreases.
A 1% strategy will enable you to buy 100 coins
A 3% strategy will enable you to buy 33 coins
"bank roll" = total amount of cash you have
More information about this topic can be found here
http://top3cryptoexchange.com/crypto-thoughts/crypto-trading-money-management/.