I would not do that....
couple reason... main reason... liquid and buds don't mix... rather than help the plant you could and will be making a good enviroment for mold... yikes...

really depends on how far into flowering you are... but past 10 days and you are asking for trouble...

i definitley would not spray fish emulsion on my buds... heheheh it might effect the taste.. hahaha

i love you..

: )