SeaPhos seaweed extracts, humic acids & phosphites SeaPhos is a liquid biostimulant mix, combining the powerful biostimulating action of our high quality seaweed extract with phosphite, and the soil conditioning benefits of humic acids, stimulating the development of a strong root system and improving soil biology. SeaPhos is a liquid biostimulant that combines the powerful biostimulating action of our high quality seaweed extract with balanced phosphite and humic acids. SeaPhos utilises Biotechnica’s in-house expertise in biostimulant technology and formulation to combine these three biostimulants in a stable and balanced product. Information sheet