curling leaves

[raider2]

hi all leaves are starting to curl up today on seedling ??? and how do i keep steady 6.5 ph in DWC ?? keeps going up to 7.5-8

[STONEDAJ69]

Use ph down, and you want ph 5.8 in DWC.

[bufo marinus]

Are you using town/scheme water or bore water? Bore water is a bitch to deal with and requires specific nutes. Flairform used to sell something suited to the shit water in Western Australia seeing as that's where they are from. They also have excellent literature on their web site http://www.flairform.com/ although their prices have become a little obnoxious lately.

Curling leaves could be any number of things yet wrong pH doesn't really fit the bill for that. I'd be looking at the colour of the rootball, if it's not white white you got problems, check the water temperature, summer is difficult to grow DWC successfully with water temps above 22' C

[raider2]

rootball is white and they look healthy except for curling , water temp 24 , used water filter and it is ph 6.8. std reading and then i added nutes and ph down but went back up to 8 ish ?

will flush with ph 5.5 and see how progress goes