Hello
@Damplenutz and welcome to THP.
I read you're new to fermenting, so I recommend you read
THIS THREAD, Fermenting 101.
From here on, these are just my opinions. There's different ways to approach fermentation. This is what I do, and I've been doing it for many years.
If you tested the pH of the brine in the ferment, you've broken the cardinal rule - Once you start a ferment and seal it, DON'T OPEN IT! Fermentation creates Co2. Co2 is heavier than oxygen. As the Co2 layer increases above the peppers, it pushes the oxygen out through the bubbler (be sure there's water in the bubbler at all times). You should see the bubbler burping out this oxygen, quickly in the beginning, and slowing down as the ferment progresses. Mold needs oxygen to grow. By opening the jug, you let the Co2 escape and oxygen back in, increasing your chances of mold. Since your ferment is still fairly young and fermentation is still active, the oxygen displacement process should happen again. I suggest you do not open the jug again until you are ready to process.
"I cant get my peppers to sink."
Completely normal. The Co2 being created is 'trapped" within the peppers and causing them to float like a raft. I suggest you "ratchet" the jug back-and-forth (clockwise-counterclockwise-clockwise-counterclockwise...etc) for several seconds. That will release some of the Co2 bubbles within the raft and the peppers will sink.
Another common question -
When is my ferment done?
Fermentation generally takes between two to four weeks. After the fermentation is complete, the "aging" process begins. The flavors and taste evolve continuously once fermentation begins, and continue to do so throughout the aging process. Some people process after only 7 days, while fermentation is still active, and skip the aging process completely. Others may wait weeks, months or even years before they process. Only you will know when you hit your "sweet spot".
My last piece of advice is to take good notes. Write down everything. That way you'll know what changes (if any) you want to make in your next ferment.
Fermentation can introduce you to a whole new world of possibilities. Have fun with it, and good luck!