Hello everyone, I'm a new container gardener and am experimenting with SWCs. These are simply a tub in a tub with a shoelace as a wick, placed somewhere in the middle of the mix's depth and ends sticking into the water out of two separate holes. Mix is 2-1-1 Peat-Perlite-Hydroton (Trying to simulate Raybo's mix using materials available to me)

All was going well, the water in the tanks were depleting and I've refilled it once since then. Today however, I noticed my plants were wilting and checked that the soil mix has dried out. Any ideas why? The roots of the Water Spinach is starting to grow out the bottom, wondering if it is choking out the wick?