ph

i have had a leaf curl upwards badly - checked My ph levels and they were over 7.

Can someone tell me how long it will take for ph down to take effect? or does it vary on the product i am using to decrease it.

Or should i just change the soil as i was told my soil had too much nitro in it and that was causing the high ph.

Plants are onlt 1.5 months old - outdoor growing

Thanks

flush it with plain ph 6 water

Check GrowFAQ.

Not sure how long it takes soil to correct but aero or hydro takes about 3 seconds to change the water ph then maybe 24 hours to get into the plants completely.Then healing time varies