Seabird Guano

Seabird guano is indeed high in phosphorus and will compliment your Neptune’s Harvest very well. It can be Premixed into soil, used as top dressing, can be steeped and watered on to roots or as foliar feed. Top dress at rate of 1-2 tablespoons per gallon of medium once a month and same rate applies to steep( 1-2 tbsp/gal water). You don’t need to “flush” organics but I suggest applying one month before harvest to ensure good smoke. Cheers 🥂