I would say that you're over-feeding. I got excited during my first grow and fed her to death. I would suggest a drink of water (aged tap) and feed every other week or so. If you don't fert enough to get run-off you should water til run-off so you can check if and when your pH goes acidic. Flushing removes all of the mediums elements. Recirculating 1gal of water (depending on pot size-mine are 2 gal) dilutes most of the newts and lets you adjust the run-off back to the proper Ph then pour it back through. Also sounds like you need a moisture meter; if you don't have, get........GL bro