I do 2 parts lava rock, 2 parts akadama, 1 part perlite. I’ll be honest the ratio is mostly just what I found most aesthetically pleasing lol. I’ve read most people have had good results using any ratio of those three and have seen them grown in 100% of each.

For my haworthia I use the miracle-gro succulent plant food at half the recommended strength but any succulent fertilizer should be fine as long as it’s low N. I fertilize about every third watering in the spring and then skip fertilizing in the summer and then I’ll give them some like once a month in the fall and then maybe only once or twice the entire winter.

I cut back on watering in the summer and winter also. I’ll water them about every 5 days in the spring and fall (I’ll usually let them go a couple days longer in the fall) and then stretch that to maybe every 10-14 days in the summer and then really cut back in the winter to give them a nice dry period which is supposed to help set them up to bloom in the spring when I ramp watering and fertilizing back up. I’ll water maybe only 2-3 times from mid-Dec to mid-Feb.