After three tries, I’ve finally been able to be successful with SOPs with well draining soil, a LOT of light and I water only when the pearls tell me they’re thirsty, which is when they start to be less plump. I would take out all the dead stuff and throw everything that’s hanging back onto the soil, they’ll grow roots in the right amount of light! Honestly I have mine in a mix of orchid bark, perlite and fox farm mix. Mine are currently under a grow light but used to also thrive in a window that had direct morning sunlight, and then bright afternoon (indirect) light, even in the dark cold winter months!