Ph and ppm fluctuations help

I need some help better understanding ph and ppm fluctuations, and what to do to correct it/how often.

I understand that the basics of ph and ppm fluctuations, but here's what I need help with: let's say I do a res change, pH is 5.7 and ppm is 1550. 6hrs later the pH is 6.1 and ppm is 1350. This to me means about the same amount of water and nutes is being absorbed. But should i add nutes and adjust ph now? Just adjust ph and watch the ppm? If adding nutes and adjusting ph, how much nutes? Which ones?

Some people say ph daily and only mess with nutes at changes, others say ph and nute daily. I just want to understand why?

If I don't make sense, I'mhigh ssorry.

Bump bump bump. That's the sound of the 15s as they hittin in my trunk. I said bump bump bump I need some info on this thread cause I do give a fuck!

Rising PH usually means you are feeding too light. Hard to believe though when you are at 1500+PPM! I run an UC setup, and have not done a single res change this entire grow(7+weeks into flower now). I usually top up my water daily, and add nutes every 2nd day as required.

I agree hard to believe at 1550. But over the course of today she went down to 1250 and back up to 1400 so I just pH adjusted. She's been a very odd girl. She started out at 600ppm at day 16

Do you add the same nutes in smaller doses to equal the loss. Or do you add only specific nutes based on the current stage/week to make up for the difference?

Bumping this

Any insight at all? I've added only the nutes I feel she told me she needed. She's doing great.