no, when it comes to fish use hydrolyzed fish like neptunes harvest, as far as flavoring goes the only thing you can do is try to bring out the natural flavors that are traits of the plant your growing. it isnt possible to manipulate your plant to taste like something else by "flavoring" its a matter of unlocking the essential oils that are genetically stored in the plant, and you do this by using good soil, adequate light, a good tea regime, meaning compost tea and guano tea along with molasses, and you use it in your tea, 4tbsp per gallon is what i use. and then even all that can be ruined in the cure if you dont do it right. you want a berry tasting plant go with subcools plushberry, you'll find it on the attitude under tga seeds.