Maori Jane

Hey there Dude! Yes that is a little high for the age of the plants. but it will be great for them once they get a little bigger until then. you may want to look into getting like 2 25watt CFL lights for the Seedling stage of life they work great for it! if you have the room it doesn't look like you do but i would also recommend looking into a 2ft T5 for the Seedling stage they work awesome but if you don't have the space the CFL;s will do the same. then once they have got out of the seedling stage pop the light you got going now back on and they will love it!👍 Hope this helps Happy Growing!!

Looks like you had an excess of phosphorus. Think of Phosphoric acid. This caused the big ph drop and caused nutrient lockout. Looks like a good save on your part to flush her hard. I would keep an eye out for cal/mag deficiencies in the newer growth over next week or two since you did such a large flush. Losing the lower fan leaves is no big deal she'll be growing more anyways. If you have a TDS meter it wouldn't be a bad idea to keep an eye on the run off ppm. Check your runoff ph also you can wind up with the ph bouncing back down if your using guano. Best of luck brother

Rust spots on older leaves are sign of potassium (K) deficiency, on the other hand phosphorous (K) deficiency shows as black, dark metallic spots on lower leaves