Remember the rules based on which candlesticks work
Marubozu is the only pattern which violates rule number 3 i.e Look for prior trend
A bullish marubozu indicates bullishness
Buy around the closing price of a bullish marubozu
Keep the low of the marubozu as the stoploss
A bearish marubozu indicates bearishness
Sell around the closing price of a bearish marubozu
Keep the high of the marubozu as the stoploss
An aggressive trader can place the trade on the same day as the pattern forms
Risk averse traders can place the trade on the next day after ensuring that it obeys rule number 1 i.e Buy strength, and Sell weakness
An abnormal candle lengths should not be traded
Short candle indicates subdued activity
Long candle indicates extreme activity, however placing stoploss becomes an issue.