upper leaves canoeing downwards

Try going to a plain water/plain water/feed/plain water/plain water/feed schedule. If you are feeding each and every irrigation, you will get a build up of fertilizer salts, especially if you are only giving 50-100mls and not flushing the substrate properly. The symptoms appear very much like nitrogen overdose, and if you are feeding each time you irrigate, this would be plausible. Unfortunately these things build up slowly over time, until the plant can take no more and before symptoms appear, but by then the problem is intensive. Fixing the problem is also a long and slow process and is not something that can be remedied in a week. Flushing with lots of plain water can be dangerous too, as it may release more nutrient salts from the substrate and cause a bigger problem. Therefore, switching to a water/water/feed routine may be the first option in preventing the problem from getting worse, but there is no easy or quick fix. Hopefully by doing so, your plants new growth will be much more normal and some slow and steady healing can begin. With this water/water/feed schedule, you should be feeding your plants every 8-12 days, depending on how fast your substrate dries out. In about 3 weeks time, I would suggest giving more plain water between feeding, maybe a litre or a bit more, to begin flushing the substrate between feeds and to prevent from the nutrient salts building up again and causing your plants ongoing problems. Hope this helps,............. Organoman.