Good morning papa canna! Any way we could perhaps get some photos so we can get a better idea of what's going on?
I have a hunch based on prior experiences of mine and I have a feeling your guano tea is the problem, but it's hard for me to be certain without actually looking at things myself.
You see, the thing to consider (and that's kind of tripping me out right now) is that in a balanced soil you should absolutely never have pH issues. The reason for this is because your microbiology will actually control the pH and allow it to fluctuate to the particular levels it feels the plant needs at that particular time. In fact, these same microbes are even capable of regulating chlorine levels in the soil! So even if your water has chlorine in it, a well balanced soil (and therefore microbiology) will actually devour the chlorine and eliminate all but what is needed. Even with 500ppm SoCal water I didn't need to dechlorinate my water as my soil would balance that out for me.
To make sure you do in fact have a pH problem, don't pH just your water as that doesn't paint the entire picture. Instead, water the girls like normal and allow the water to settle in. Get yourself a tray and/or dish underneath after you've allowed the water to settle. Then, continue watering the pot until you start seeing runoff in the dish you placed under the pot and pH that water. In fact, why not check the pH of the tea you've been brewing, you might be surprised to discover just how out of whack it is too.
Looking at both your soil mix as well as your compost tea recipe (and the fact that a tea is being used) leads me to believe you're actually experiencing a problem with nutrient toxicity rather than anything else. Myself, as well as many others have actually started to shy away from bat guano as a whole because it's much too finicky and there are cheaper options that will do what guano does without the associated problems. Bat guano is hot stuff, like, really hot. FFOF is also some pretty potent soil as well. You only added 2 cups of guano and 2 cups of the 5-5-5 Happy Frog (which also has guano in it by the way), so the soil recipe you're using at this point looks pretty balanced for the most part actually.. assuming you only add water and nothing else.
I think your culprit is the compost tea, and what you're experiencing now is exactly why I stopped using teas and recommend people NEVER use them unless it's an EWC+molasses tea. I can probably guess what the plants look like right now without pictures because I had the exact same issue years ago when I started organics. The plants are yellowing out of control, lots of burnt leaf tips, and they likely look rather sickly and slightly droopy all the time yes? Possibly even a little necrosis throughout the plant as well if I had to guess? Your growth has likely stunted as well, if not come to a complete halt.
I had this exact problem when I made my teas and determined the issue was the fact I was brewing a tea with alfalfa meal and guanos. Like I said above, your soil looks pretty balanced to me and I don't think the issue is with your soil at all. I'd replace the guano with something like crab meal instead because crab meal is lighter than guano, doesn't burn, and provides more to the soil than any kind of guano ever could.. but regardless of that fact, even with the guano in it the soil looks rather balanced to me still.
The tea, however, is throwing your soil out of balance. You see, when you make a living organic soil, you're essentially creating a soil that only needs water. Those organic amendments don't actually provide any of the advertised NPK ratios until they break down into actual organic matter.. take the guano for instance. Just adding guano to your soil doesn't give you the 0-8-2 NPK, you get that NPK when the bat guano decomposes in the soil. Here's where things get even more interesting though, your plant actually communicates it's needs to these microbes via the rhizosphere and the microbes will then provide the plant's roots with what it's asking for. So your soil has 0-8-2 Guano, and 5-5-5 general purpose, and 1-0-2 kelp meal (that also has a plethora of macro nutrients) right? So your soil essentially has everything it needs just the way it is. Your plant can tell the microbes that it needs some nitrogen, so it will actually send microbes to the 5-5-5 general purpose Happy Frog product in your soil to start decomposing that 5-5-5 organic amendment. After the microbes finish eating, they go back to the roots and pretty much defecate the needed nitrogen right on the roots for the plants to readily absorb. Same thing with the bat guano; the plant will tell the microbes it needs phosphorus, so the microbes will munch on the guano, come back to the roots and defecate phosphorus near the roots for the plant to absorb. Etc. etc.
I bring all of that up to demonstrate that the soil you constructed by itself pretty much only needs water and that's it. The soil has everything the plant needs, and if you allow the plant to remain in control of choosing what it needs then your soil alone should be more than enough. If you start seeing deficiencies, simply top dress with more 5-5-5 Happy Frog, cover that with compost, and that's it.
The reason I wanted to establish the fact that your soil has all it needs for the plant is to point out why the teas are actually messing you up. You see, with your soil, the plant can decide when it's hungry and the plant can decide exactly what it wants to eat and when it wants to eat it. This is because the organic amendments in your soil haven't fully broken down yet and the plants can just tell the microbes to specifically decompose something to provide the plant with the nutrition it needs.
However, here's what happens when you're brewing a tea. When you brew a tea, you're making everything you put into your nylon stocking/sock/teabag/etc immediately available for the plant. So lets take the guano for example again; in a balanced soil all by itself, the guano will be decomposed at a rate that's comfortable for the plant and you likely won't experience burn if you use the stuff in moderation. That 2 cups of guano will take a while to decompose into organic matter inside of a soil mix. However, inside of a compost tea, that 2 cups of guano is going to be made available to the roots immediately. Remember how I said that with a soil that only uses water and nothing else the plant is able to control exactly how much it wants to eat? With a tea that's not true. With a tea, everything in that tea is readily made available to the plant whether it's good for it or not. So if your plant has sufficient levels of P, but you're adding a tea with high amounts of P, the plant is going to uptake the P in the tea whether it actually needs it or not.
This is why I recommend people stay away from teas because this is exactly what happens. When I first started organics, I got into subcool, then got into the Rev and all his ridiculous tea recipes and such. I kept making his teas because "He's the Rev and he's so much smarter than I am", but I never actually stopped to understand how organic soil and teas work. I was doing things without understanding them. So I kept mindlessly brewing the teas at his advice, once a week, like you are. For the first few weeks, my plants were kicking ass and taking names and I thought I was the shit. Then I hit week 4 of flower and was met with severely stunted growth, airy bud sites, excessive yellowing, burnt tips, and necrosis galore. The plants pretty much never looked happy (leaves were never upright, slouching, drooping, dry texture, etc) until I decided to stop brewing teas entirely. I stopped brewing the teas and stuck to just water and within 2-3 days my plants were looking better.. but unfortunately this was around week 6-7 of flower and I was already much too late.
I apologize for the lengthy response, I struggle with being concise and it's something I'm trying to work on. However, based on what I'm seeing in just text and without photos, I'm pretty damn sure the issue you're having is the teas you're feeding them. As you said in your original post, your soil is in fact fertile enough to take care of the plants, but when you add those teas into the mix you take control away from the plant and put it back in your hands. Brewing a tea is no different than buying synthetics because both the guano tea and synthetic nutrients will be available to the plant instantly, so if you give them too much or too little your plants will suffer. By letting the soil and the plant control things, you'll never give them too much or too little because it isn't up to you. That's why I love organics, I always struggled with giving the plants the exact amount of everything they needed.. with organics, you just make a good soil and leave them alone aside from the occasional watering and top dressing.
Again, I apologize for the lengthy wall of text. If you have any questions or anything you're still unsure of, I'll help out to the absolute best of my ability. You're still not quite in week 5 yet, which means that while you'll still have some issues no matter what, you're also in a position to mitigate a lot of the damage. I'll do what I can to help because I know just how deadly these teas can actually be. You're talking to someone that only pulled 1lb from 2000 watts from 12 7g pots because I listened to the Rev and brewed teas with guano and alfalfa. I wouldn't wish that shit on anyone.
