FishShit is an actual product name (sometimes spelled FishSh*t or FishSh!t). It is a soil conditioner, not a nutrient.  It's loaded with beneficial microbes that help improve the plant's immune system, and help break down nutrients in the soil so they're more "bio available" to the plant.  You can't overdose it like you can with actual nutrients.Using FishShit is optional (not part of the official protocol) but highly recommended - we're seeing great results with it.  You don't use it for the initial soaking of the pot before dropping the seed, just from germination onwards. Since the pot will be soaked, the only watering until the sprout arrives and advances to the seedling stage is a tablespoon of water with two drops of fish shit over and around the immediate planting area (about a 2-3” circle in the center of the pot). This will insure the topsoil doesn’t dry out where the seed is planted and with the addition of the fish shit will help create a more “germination friendly” environment.  After sprout, follow watering directions on the bottle.