I would love to know peoples tried and true tricks to knowing when your lithop needs water and or fertilizer. I feel like mine could be doing better if I knew what to look for. Right now I water when they sink into the soil, feel slightly squishy/softer, and the tops are starting to show signs of wrinkling (all 3 must be present before I’ll water). After watering they perk back up, but I feel like maybe they’re being under watered or I could be looking for better signs than that…. I also only bottom water and have yet to fertilize them as everything I read says they don’t really need it….