Tips curling up, any advice?

Hey, I'm in my 3rd week of veg and I added 3% H2O2 (hydrogen peroxide) to my reservoir to kill some of the bacteria I noticed, as well as add some oxygen to the water. After adding I balanced the ph at 6.7, my super silver haze loves it around there. Cal n mag levels are normal, not sure what's going on. Was fine 6 hours ago... Please help.

When your leafs are curling upwards its probibly heat stress, check your temps and adjust a little, also i never use revs but the stuff you put in there can cause a green slime which can have very bad effects, if this happens get back on here and write a new thread, let me know how it goes

You mean the h2o2 causes a green slime? If so how do I get rid of it?

Im not sure what peoduct does it, and many people have not been able to sort it. But if you get that problem i am sure someone more advanced in hydro should be able to help

Like furious said, most likely heat stress. What's the temp in there? Also, I used h202 early on and it worked pretty well but I switched to beneficial bacteria about 6 weeks into veg and noticed a big difference. The tea will actually make the res look a little cloudy at first which made me nervous but it clears up after a day or two. Best part is, it really keeps the ph in check. With h202, I was balancing ph up to three times a day sometimes. With the microbial tea, I can go days without any change in the ph.