Vermiculite vs Perlite Similarities Differences and
Pick either size #3 or #4 Vermiculite and perlite work well together for hydroponics Vermiculite retains moisture while perlite does not So by using a 50 50 ratio mixture it creates an ebb and flow type of system A 50 50 mixture will hold some but not all of the water It will retain some of the nutrients supplying the roots with the food necessary to grow as well as plenty of oxygen