Highland Rim Aquatic Plant Fertilizer is a fast acting fertilizer tabs that allow their nutrients to go right to work giving plants a strong start and healthy diet. 10-26-10 ratio, Will not crumble or dissolve in the water before you get them in the plant container. 10 gram tab size allows for fewer tablets per container. Use 1 tab per gallon of soil every six weeks. 12 tabs , 36 tabs, 80 tabs, 300 tabs, 1000 tabs