60% Coir, 5% sphagnum, 35% #3 perlite. I keep the pH at 5.9 - 6.1 in veg, 6.3 in bloom.
I make my own nutes following the tomato formula in Hydroponic Food Production by Howard M. Resh, Ph.D. This is pretty much the same as Gen Hydro's A + B+ Micros. Making your own costs pennies on the...