You are right PW, that's exactly what it is my freind! I imagine it's salmon and whatever else they caught that day - but what the Hell (right).
I use both kinds of Alaska Fish Emulsion + 2 kinds of Bat Guano to "coax" my otherwise "nuetral" and "mild" nutrients between Veg and Flower. Let me explain:
I start with a "Just Add Water" soil mix - but - the NPK numbers are "a little weak" but fairly well balanced. For the Veg cycle, I add a little of the Alaska 5-1-1 and a little Mexican Bat Guano, as a tea. Then, for the Flower cycle, I switch to Alaska Morbloom and Indonesian Bat Guano.