Fertilizers

I have been reading about Fish Emulsions for plants for the last year or so,  So I conducted my own experiment.  For the last year I used Fish Emulsions and or Seaweed Tonic plus Osmocoto slow release plant food and I have notice my plants florishing much more than when I did not use it.   Since Fish emulsions helps promote healthy root system,  why not use it?  or if you have a fish tank use the water from the tank.   By the way, use this only in the growing seasons.