Just as the title states I am another indoor grower, BUT! the good news is that I am not a complete beginner, I just need some help. So I have these seedling that sprouted really well but it has a deficiency already. Now I thought that hydroponic was easier to grow in and this is the second time I have grow hydroponically and the plant has a deficiency, so its me that is screwing up here. I have a couple pics of the plant. I think it is an iron deficiency but I would like some advice and hopefully I am correct. Oh and my specs for my grow are: 400W HPS Light, 6 plant hydroponic system 2 fans (intake) and one exhaust fan. The Temp in the grow room usually stays around 27-29 degrees Celcius and the humidity around 35-45%. If this isnt an Iron Deficiency then what deficiency is it? And how do I correct it? Nut Levels are: I dont know how many PPM it is. But my PH is @ 6.2 and I have mixed the nuts at one teaspoon for every four gallons, and I am using the GH Flora Series. Just like the bottle says.
