Yellow tips, and some curling

Your PH is fine brother. And going by the breeder is fine But when you are dealing with water, real hydro 1/3 of that number usually does the trick. Happy growing. She looks very well. Just overfed. Even keep the same mix but bucket some out and replace with water and PH if needed and bring the EC down to between 4-700 include your waters PPM in that also. If your water is hard you won't have to worry to much about calmag anything around 200 is hard so maybe filter it, or not, your pref. But if your water is below 100ppm I'd think of adding some calmag to that with your feed just 50-100ppm or 0.1-0.2 EC. Happy growing.

I guess with mu first grow I don't know what to expect so I was going by the recommendation of the lotus nutrients ppm. Ph stays between 5.6-6.0, I check everyday

Check ph, because she has a fert burn, but actually she is not dark green. So I think that there are to much fert the plant cannot feel, probably you have 7 ph, check it everyday!

Pull back on the nutrients. I've gone through your diary and your in DWC 1150 is way too high for DWC it's just not needed. 5-700max is all that's needed when it comes to real hydroponics. Lower your EC as that will get a lot worse. Even just take out a couple of cups and add new water to it to lower the EC to a more suitable range. Good luck.