Healthy plants should I add fish hydrolysate?

My plants are healthy with no deficiencies or issues. I'm about a week and a half into 12/12. Will adding fish hydrolysate be beneficial? I would like to increase the fungi in my soil!

If you want fungal inputs i would get or make some grokashi as a top dress.

Try some carbs. Molasses is easy. Bug carcasses are long term. Both feed existing population. Many others. Fish is feeding more than your intended target. Great stuff though.

A little extra P right when flowering starts can't hurt.

Besides the nutrients they contain, the amino acids in fish guts can also stimulate your plants to take up other micronutrients out of the soil. This can make your grow Hi Brix and even help with resistance to mold and mildew.

If everything is healthy and there are no deficiencies, Just Use a Little. Too much can cause some kind of pH swing or lockout or something and yellow off a bunch of leaves.

For plants that are already healthy green I use around 2-3 teaspoons for about 4 gallons of water to keep my Brix up. Late in flower when my soil is depleted and my plants are fading I use more to feed.

Fish hydrolysate is one of nature's most perfect fertilizers...not only for feeding tea, but as others have said, for the free amino acids. You know those "bloom boosters"? Besides the ones that just dump p/k, the other type contains an amino acid supplement, either soy or milk protein depending on the company. Fish hydrolysate is just as effective as those products, perhaps more so. Regardless of the nutrients I'm using, I always have Neptune's Harvest on hand for my teas, and to add once in a while during bloom as an amino supplement. I also use it on my tomatoes outdoors!