4 pack of 16 oz bottles for easy estimative index dosing for planted aquariums and aquascaping.<br><br> Analysis: (KNO3 – 23.15%)<br> - KNO3 - Δppm/1pump/10gal = +12.23ppm<br> - 1 pump, 2cc, contains 463mg dissolved KNO3 <br> - 1 pump per 10 gal raises KNO3 concentration by 12.23ppm<br><br> Analysis: (KH2PO4 – 5.5%)<br> - KH2PO4 - Δppm/1pump/10gal = +2.9ppm <br> - 1 pump, 2cc, contains 110mg dissolved KH2PO4 <br> - 1 pump per 10 gal raises KH2PO4 concentration by 2.9ppm<br><br> Analysis: (K2SO4 -9.5%) <br> - Δppm/1pump/10gal = +5ppm <br> - 1 pump, 2cc, contains 190mg dissolved K2SO4 <br> - 1 pump per 10 gal raises concentration by 5ppm<br><br> Analysis: Micros (SO4-6.21%) (Mg-4.73%) (K-2.55%) (Fe-0.51%) (Mn-0.072%) (Zn-0.0215%) (Mo-0.002%) (B-0.0018%) (Co-0.00018%) (Ni-0.0001%)<br> SO4, Sulfate - Δppm/1pump/10gal = +3.28ppm<br> Mg, Magnesium - Δppm/1pump/10gal = +2.50ppm<br> K, Potassium - Δppm/1pump/10gal = +1.35ppm<br> Fe, Iron - Δppm/1pump/10gal = +0.26ppm<br><br> 1 pump, 2cc, contains: <br> (10mg Fe) (95mg Mg) (50mg K) (124mg SO4) <br> 1 pump per 10 gal raises Mg by 2.50 ppm<br> 1 pump per 10 gal raises Fe by 0.26 ppm