Yea, definitely recommend organics. Easier to not burn, or mess up the PH. As long as the soil was amended correctly.
Lime's the first thing that comes to mind. Watering with a high PH helps bring up the soil ph as well. So, some lime and un PH'd water should bring it up. Then you would be able to water it at the correct PH to maintain. Correct me someone if Im wrong. Im not a PH expert. Ive never had to mess with it. Though, from reading on here and else where. I have the understanding of how all that works. Just never put it into practice since Im TLO.
Some brands of soil are the correct PH right out of the bag, and consitently so. Its just that some I hear have had some inconsistancies in their mixes. As far as PH is concerned. Pro mix, and Fox farm has had these issues from what Ive heard.
Anywho. You should be able to adress the issue before it causes a real problem. Since it looks like your staying on top of checking things. Which I recommend always doing so. Even after you have been growing for a while.
2 things Ive picked up so far that will help any newbie grower I believe.
1. Dont try to hard.
Like trying to push the nutrient regime, and adding all kinds of this and that. Keep it simple, and basic. Specially with organics.
2. Never get comfortable.
Just because you grew something spectacular, never means you should fall into complacency if you want to continue growing your skills.
Cheers brother.
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