Sick Baby needs help

[Gatekeeper777]

She is about 7 inches tall about one month from clone.
she is hydro she is loosing color in her leaves from the top down.
turning yellow and the tips look like they are burnt.
Just changed water 4 days ago.
She is fed
General Hydroponics

Flora Grow 2-1-6
Flora Micro 5-0-1
Liquid Light solution for folar spray with
regualr water from well between sprays.
All was well till I changed the water

The water is airated with a 5" bubble stone and heated with a fish tank water heater to 78 degree F.
She is in Pea gravel with a rock wool .

what is wrong and what can I do to fix it?
Please help.
Thanks

Gatekeeper777 Reviewed by Gatekeeper777 on 01-16-2010. Sick Baby needs help She is about 7 inches tall about one month from clone. she is hydro she is loosing color in her leaves from the top down. turning yellow and the tips look like they are burnt. Just changed water 4 days ago. She is fed General Hydroponics Flora Grow 2-1-6 Flora Micro 5-0-1 Liquid Light solution for folar spray with Rating: 5

[killerweed420]

Looks like it could be a ph problem.

[Gatekeeper777]

Ph was 6.8
I changed out water ad refreshed nutes.
Ph again 6.7
I hope this will save her

[Italiano715]

Ph was 6.8
I changed out water ad refreshed nutes.
Ph again 6.7
I hope this will save her

well my friend, if this is hydro then your pH is supposed to be around 5.5-5.8 not 6.7