Why is my PH dropping so low and should I be conce...

Hey there, everyone had some great advice, I think we all have various struggles with ph. Not only is recalibrating helpful, but usually these ph pens arent built to last for too long and often have to be replaced I've read that if your diode goes dry it can slowly ruin the pen, I'm not entirely sure this is true to all types of pens. I don't think the drop to the mid 5's is too concerning especially since your plants still look healthy. It might be helpful to look up the sds or msds sheets on each product, that'll give you the ph of each nutrient you use and maybe give you an idea of what's causing the drop. For me i have 1 nutrient that has a ph 3 and another who's up at ph 7.5. Each nutrient has different ideal uptake ranges, so i think if you let it drop too far below the 5.5 that's where you'll get lock out of some nutrients that are better absorbed higher like calcium etc. Ph and ec and ppm are always an exhausting part of growing, but definitely do a few tests with the ph pen and see if your finding different results. ✌️ good luck with the battle.

Well theres a few things here , when you fill your rez do you use just tap water , distilled water ? Do you use tap water that hasnt been out for 24-48 hours . All these things can vary on the PH if you are consistent with your PH you should be ok , my recommendation is that you calibrate your PH pen before you measure your water and after your done feeding to double check . I might also consider trying cutting out the hydro guard for just abit to see if it helps , you may have to refill your res to change the water so it dont get stagnant a little more often but if it helps then it helps :) I hope this information helps you on your journey to becoming a grow master ! :) -Happy Growing!

First off double check your pH pen' calibration just to rule that out. Now if you are using Regular tap water or town water with no filters or anything that could be your problem. I don't know it it is the Nutes because I don't remember having that problem when running the pure blend pro bloom but i do remember that after i mixed the nutes up it was a lower pH in the 5-5.7 range compared to the house and garden I am running now that is always around 5.6-5.9pH. So who knows maybe it could be the nutes you could always do a test and just add the water with no additives and see if it drops/ stays the same/ or goes up if it goes down well that is most likely you culprit if it stays pretty stable then it may be the nutes and or pH pen? Hope this helps and let me know what you are using for water and pH measurement? Then I may be able to help a lil more👊. Otherwise they are looking awesome so if the plant are loving it don't fret to much