The soluble fertilisers made for tomatoes are the ideal for hybrid Echeverias, applied once a month when the plant is actively growing, decreasing to none in winter. Homemade 'tea' using animal manure is also good, but be careful that the nitrogen level is not excessive. Other soluable fertilisers are good at half-strength once a month too. Don't apply the same fertiliser month in, month out. It's like you eating nothing but chocolate all year. They like some variety too! c l o s e