In a discussion with a fellow grower I leardned that he uses crushed coral as the primary ingredient for his Mexican Pinguigula species. I though this an odd choice but when I looked at his plants I saw that cuttings I had given him were easily 3-4 times the size of the plants I had made the cuttings off of. With this in mind I have decided to switch up my mix. I purchased 10kilos of crushed coral and washed it till the water ran clear then soaked it with 4 changes in 24hrs. Next I mixed in vermiculite, charcoal, perlite and clay pellets to about 10% of the total mix. I will follow up here with updates on how the plants are doing if you all are interested.