Rollitup

Yes I do I'm running it at about 5.7 5.8 ph no ppm pen

Running DWC, you might wanna invest in one. Changes and fluctuations affect the plants quickly in DWC. The same can be said for the upswing & recovery of things too.

Do u have any recommended name brands I should look into

Cant go wrong with a BlueLab. I'm usually an overly cheap bastard, but this was one area I spent a few extra bucks. This, pH meter and timers.

My ph one is good has temp as well Ima look into the blue lab ppm pen... Also since running in hydro I been seeing a lot of ppl adding h2o2 is that recommended and should I also invest in som and if it makes any diff this is a snow lotus X white widow autoflower and I have a grow tent 2x2x5 with 150 w hps

h2o2 is great if you are running a steril res meaning no organics/all synthetic feeds. If you are running floraseries 3 part then you are running synthetics. In that case h202 is good. If you run organics, you will kill off all of the beneficials in your res basically leaving you with a sewer in your res.

Usually anything that is brown/tea or contains "guano" or "worm casings" will be organic.

Good to hear Ima look into scoring som of that to should it b added b4 nutes or after for future reference cause I'll will be jus running ph water next res change