Wallknocker said:Thanks everyone. I feel like I have a good notion of the kind of mix I should have.
I should to end up with a 50-50 organic and inorganic mix for now, as most of you. Probably going to use compost, peat, coir, coarse sand and perlite or pea gravel (was leaning towards pumice, but it is proving quite difficult to find here in Portugal ).
@Baja_Costero Sounds like coconut peat is a safe bet then! I was afraid to use it, as I've read that because it absorbs that much water, it keeps it from actually leaving the pot, and might encourage rotting.
@skopjecollection Wow it's amazing how your cacti do so well in that soil, and that bloom is just gorgeous! (btw, what happens with the other 3%? )