1. Easy to use
2. Fish Safe!
3. Wont Cause Algae in ponds, insoluble Nitrogen!
4. Enhanced with Humates!
5. Increases Flowering and Flower size on Waterlilies and Lotuses!
Please use as directed given the type of plant and also if the plant is in a pond or in a container outside the pond where you should likely halve the amount of spikes used compared to that in the pond.