Im running three different strains in one res. 7 L.S.D barney farm 2 sour kush... forgot from where... freebie and 1 lemon skunk... trying to figure out why the lsd in the front is SO much taller than the others any thought or suggestions because she is almost at the light....
One thing you might run into is that different strains take different ppm/ec levels when they flower. You will find that some of the smoke is awesome whereas some may suffer.