I've had some similar issues to you (no rain, very dry for a looong time, tap water in a mining area). *Kinda* looks like minor signs of magnesium/calcium imbalance (too much magnesium/too little calcium, or something else interfering there, possibly fluoride and such, might even need a tiny bit of boron). Otherwise looks really good though. I'd probably think of lowering whatever nutrients contribute the most magnesium a bit and possibly increasing calcium a bit, but I'm just guessing.
For one plant that had severe issues that *I think* is related to magnesium, but not only, adding some sugars/carbs/acidic stuff seemed to help quite a bit. Very tentative speculation though, so I'm not suggesting much/if any changes. Good luck!
@drogonation,
Uh, lots of calcium is generally a good thing, it's quite difficult to have too much calcium as it is vitally important to most functions of the plant and used in most of the plant's growing mechanisms. I also find it hard to believe you have lots of calcium in your tap water (at least, relative to things like fluoride that would sort of interfere with it). From what I can tell of those pics, you don't have an issue with too little magnesium, but you might have with too little calcium.
The balance of calcium to magnesium should generally be higher than what people recommend/use (that is, you should probably have a lot more calcium than magnesium).
@@Ssomeguy, Here I know tap water comes with a lot of calcarium :(.
About the nutrients I think it might be ok because I'm following the recommended nutrition from Advanced Nutrients.
Thanks for your hints dude, I will try something like you said.