cactus compost vs compost / sand mix
Hi, I ran out of cactus compost a while ago. Someone at the local garden
centre advised me to use a 50/50 compost and sand mix instead (they had
no cactus compost in stock).
I did that but I notice that I watered all my cactii today and the 50/50
mix is already dry(ish) while the pure cactus compost I've watered is
still very very wet.
Is there a difference between the two? Any pros and cons of either?