The pogostemon helferi isn't really taking. I got some from George in the plants that he sent, but they disappeared rather quickly. I thought it was down to the fact that when introduced I wasn't dosing. So I bought some more a few weeks ago but they're going the same way - but slower. Details: Vision 180 Dosing 5mls of TPN+ & EasyCarbo Standing Juwel T5's with reflectors. Here's some photos... One leaf showing something bad (going see through) This shows one plant nearly gone! Was chatting to LondonDragon on msn earlier and he suggested that I could be not dosing enough or that the lighting wasn't sufficient to penetrate down to the gravel? I would say it's similar to "crypt melt" but they're not crypts?!