Latest FNG on the block - Saying hey all - Glad to be here!

Well my wife and I are first time growers long time tokers lol.
Our setup is top fed dwc with 185w LED. Single quarkle strain in 4th week of flower in 2'x4'x5' tent, temp is set to 68-75. Dual outlet air pump for 60g aquarium with 2 10" stones.
6gal res with 3gal r/o water.
Recently switched to tigerbloom from age old bloom organic.
2tsp per gal nuts, working up to 1 tsp per gal.
1tsp per gal of hydroguard and cal/mag.
530 ppm
ph 5.5-6.5 most of the time

We had some root issues from what I think was to little o2. Had 2 small aquarium stones on small pump switched to bigger pump, bigger stones, peroxide root bath and water change. Now have new root growth and no more weird deficiency signs (fingers crossed)!

But now we're having some ph down swing issues. Ph at water change 5.8ish by morning of day two 4.5 bumped back to 5.0 this morning day four 4.0.
Have heard ph down in flower is common but this much of a swing?

Sorry for the long windedness of it all! Any thoughts are welcome thanks!
 
Nice job grabbing attention... Welcome to the community where the best and friendliest growers come to share their knowledge and love for cannabis. Hope to see some posts and pics of what you have going on.
You should start a journal, check my signature for a link on where to start one. Glad to have you on the team.

KiG :green_heart:cheers
 
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