The under the sea is JoAnn'a hmmm is there an update on that one.
I don't really fertilize my succulents
I don't want them to grow too fast but I do add fresh dirt (miracle grow potting soil)!all the time to keep them healthy. Our heavy rain sometimes washes away the dirt from my planters since they are kept outside almost all the time. So I just replenish with new dirt everytime.