Hi, I have not done Catasetums I don't know if they grow the same as the Corys. these are sure not compotted like any others I have tried . On the Meyers link it shows how to do the Corys . might work on the Catasetum ? I put these in small plastic baskets with Spag. covering the rizome and roots , some have leaves some not . Spag. is nuked in the microwave and R.O or rain water is boiled . Wish me luck I'm gonna need it .. Gin