i'll look into the GH line of ph adjusters. ive done a lot of reading and have a few ht movies on cultivation all recommended distilled vinegar and seems to work. but nothing wrong with tryin something better.

i just wasn't sure about the hardwater series. also didn't know its only micro that was diff. i figured the burning was from switching nuts besides that nothing has changed to cause the prob. and from reading and pics in cultivation books is where i had the idea of maybe a nut lockup.

but like i said i switched back to normal flora and vinegar and new growth doesnt seem to be burning. i will give the hardwater formula another try when i start off w fresh clones.

are there any other hardwater series out there worth a look besides GH?