Anyone with experience of Advanced Nutrients PH Perfect for Coco range? It's not working for me at all!

Wish I could reply to specific answers but I couldn't upload a photo. Yeah there's Calcium and Magnesium problems along with the iron. The light I'm using shouldn't be an issue. All I can say are that the photos would look like classic iron deficiency. I've got no problems using Canna but a lot of problems with Sensi PH Perfect - the problems are the exact opposite of what their advertising says it does. Shame there's not enough space in the question space to list what I've tried. I'm in contact with AD and awaiting a reply because they're puzzled too apparently. I have been trying to PH down the Sensi but it's not fixed the problem exactly. I've been trying to get my root zone down to 5.8. So far, even according to them, I don't seem to be doing anything wrong that we can figure out.

The pH Perfect technology not only adjusts your nutrient mix water but also makes the nutrients available for a wide range of uptake at pH range 4.0-8.0 so as long as you’re within that range the plants will feed effectively. This is the information I was given by advanced nutes via email I just copied and pasted it.

Also they come with 100% money back guarantee if you don't find they work it does say on their webpage

I use ph perfect and don't have a problem at all guaranteed ph is 6.2 every time regardless of the amount added even when I use any of their other base nutes with the ph perfect it doesn't alter the photo stays at 6.2, whatt ph is the water before you add the nutes because if it's 6.5 and over it will struggle to drop it lower than 6.5-6.8 also it doesn't matter as long as its reading below 8 your plants will still feed healthily because of the well developed and highly chelated formula I will copy and paste the email they sent me when I asked about the same thing before I purchased them. Hopefully this will help

there's almost never an actual iron deficiency , without a picture i cant be sure but usually it's a magnesium related deficiency because of intense light cycles or other reasons. try uploading a picture or more info because it's not easy guessing. I will say this though : anything with a cannabis label on it is a complete scam , what's the difference between tomato NPK and canna NPK ? about 40 quid a bottle and that's pretty much it lol . Oh now that i think of it, another problem i've seen with this range is that it's not actually pH perfect in any way shape or form so you really do have to go in and assure you're around 5.8 pH for coco by using pH down ... if you're not pH-ing your feed it could be that that is the reason the nutrients arent getting to the plant. Hope this helps ! 🚀

Just so people can see: I've washed, buffered, pearlited and prepared the coco properly. The Sensi keeps "correcting" the root zone to 6.8! Even taking into account this rebound effect (that I've more or less managed to fix) it still goes wrong. I've tried every fix I can think of but the deficiencies just keep coming back. In the tank it "corrects" to PH 6.0 and mixing, PH Down and waiting 24 hours for the rebound effect and correcting again (which works with other products) just isn't working for the PH Perfect stuff. Tried BigBud and CalMag Xtra and done a bunch of tests but there doesn't seem to be a fix for this iron deficiency. The two things they push in the adverts (that it corrects to the right PH and that it has the perfect iron) are the two things that definetely don't work. I'm using Canna basic A and B to try to save them but I need to know if I have a load of useless nutes on my hands and maybe even if I can get my money back somehow. I'm bl00dy furious about this.