Lower leaves, tips yellowing. Not mag deficiency?

So about a week ago i posted the same sort of thread, saying the lower leaves ( since then it has gotten higher and higher) had begun to have yellowing tips. After talking it over everyone seemed to agree that it was a magnesium dificiency, so i went out and bought some epsom salt, added it to my water pre nute mix, (1 tbl spoon per gallon) and began to water. It hasnt seemed to help, and the problem has only gotten worse.

I'm using a 125 watt cfl.
20/4 light times
6ml micro, 12 ml gro, 3 ml bloom.
6 ph level
"The Church" strain
Temps in box go from 70-90

I water every 2-3 days depending on how dry the soil is.




Any help would really be appreciated.
Thanks a lot.

Gonna bump this because I'm having the same issue. Tried the same thing with the epsom and no help.

You need to raise your ph to 6.5 for the plant to be able to not be mg locked out. All the epsom salt is doing right now is just sitting there. Hydro can go lower to around 6.1 I believe but soil it will lock out below 6.5.

You are definitely deficient.... do a good flush on that with PH water to 6.5-7 then continue to water/feed with PH 6.5-7 water from now on.

Try to put the epsom salt in a foliar spray and hit the leaves with it.

Fantastic. Thanks for the quick replies. I will bring up the ph and start spraying with the salt mix.