Hello all, After finally getting into a routine with the nutrients and thinking that my plants were looking good, they have finally turned and are starting to look a bit tatty. There are various symptoms, like leaves going clear, yellow patches, deformities like rolling up etc. Rather than list them all, here is a picture of some that I removed. Please can you tell me what is likely to be the problem and where I can start investigating further. Nutrient input: Day 1 - Flourish, Flourish Excel, Flourish Iron Day 2-7 - Flourish Excel, Flourish Iron *The Flourish Iron was every other day but I have upped it to every day now. Parameters: pH = 6.8-7.0 NO2 = 0 NO3 = ~0 (very low) Phos = 0 NH4 = 0 GH = ~16o KH = ~10o Light = 38w, 0.69wpg Thanks!!