Slow release water planting tablets are ideal for use with water lilies and water plants. Fish and frog safe. Packs of 10g tablets including standard shipping. We recommend 2 fertilizer tablets every 2 months to maximise flowering of your water lilies. 20%N - 1%P - 10%K + T.E. Typical Analysis (10g tablet), Nitrogen(N) 20.7%, Phosphorous(P) 1.2%, Potassium(K) 10.5%, Sulphur(S) 4.6%, Magnesium(Mg) 0.45%, Iron(Fe) 0.36%, Zinc(Zn) 0.08%, Copper(Cu) 0.05%, Manganese(Mn) 0.08%, Boron(Bo) 0.01%, Molybdenum(Mo) 0.01%.