not this time around, but the next grow yeah....does it STINK UP the tent..You can use it yes I've used fish emulsion in flower too. Trying now to figure out how a fish taste gets into the roots then into the flowers??? Be like watering with candy flavored water to make my buds taste like candy... I'm not sure.
I use kelp meal too... I've tasted turkey that was fed kelp and could taste a fishy flavor sorta but thats a turkey.