Please Diagnose My Problem, And Give A Solution

Strawberry Cough (fem)
400w HPS cooltube
439CFM exhaust fan
Grow-Labs 4x4x6.5 tent
Ending week 4 flower
Vegged for 50 days
FoxFarm nutes (minus TigerBloom)
FoxFarm Ocean Forrest Soil
GrandMas Mollasses

Just in the last week ive had alot of yellowing/browning going on. Leaf tips yellowing/browning.. curling upward on some of them. Ive just been giving them 1/2 of the reccomended dosage of BigBloom per gallon as well as grandmas mollasses 1.5 teaspoons per gallon. I was in doubt so I flushed last night with 2x the pot size which is 4 gallons so around 7-8 gallons per plant. The newer growth doesnt seem to be affected but i can see barley the leaf tips just starting to yellow a BIT. The water I use is straight tap water. (stupidly) I dont test the PH but I know its not TO far off prly around 7 or so.I was also reading that red stems is a sign of N defic...

Here are a few pics.. you can see the yellowing and what looks to be an M deficiency......... it looks like an N and M deficiency... to me atleast.. this is my first grow so I dont know 100%.

I was thinking If I added tigerbloom it might fix my deficiencies....... or maybe some epsoms salt maybe for the M defic and some fish emulsion for the N defic?


Can someone educated with growing diagnose my problem and tell me how to solve it. You can see in my pics the problems im having.

Also on my NEXT feeding what EXACTLY should I feed them? I will be ending week 4 flower tomorrow.

???????? anyone ?????????

1/2 dosage might still be too much some strains cant take it get a ph tester dude theyre not expensive

they look fine to me , u should expect some leaves at the bottom of the plant to either yellow or drop off while flowering its natural..id like to here from someone that knows a tad more then me tho

if your only giving them half to Dosage it could just be a P or K def

hang in there not much yiu can do now

slk said:

hang in there not much yiu can do now

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what do you mean? Of course theres somthing I can do I have 4-5 weeks of flowering left.

If I start adding Tiger bloom I think it will clear up, I was using big bloom as a stand alone fert, and I just read its not good.. the NPK is so low. I think im gonig to get some tigerbloom and see if my problems clear up in a week.

I would definitely find out what your waters ph is, out of the tap at my house it is 7.8! You can get a ph kit in the fish supply section of wally world for around 3$. Good luck

crackbaby said:

I would definitely find out what your waters ph is, out of the tap at my house it is 7.8! You can get a ph kit in the fish supply section of wally world for around 3$. Good luck

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I have 1.. but its the "dye" kind and its hard to tell EXACTLY what the ph is..

Shoot for yellowish green, that should put you around 6.5. I've gone by this standard for 4 grows with several different strains and have never had any problems.

llooks a lill like magnesium defficiency

crackbaby said:

I would definitely find out what your waters ph is, out of the tap at my house it is 7.8! You can get a ph kit in the fish supply section of wally world for around 3$. Good luck

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firstly ace display picture lol

also 7.8 is ok mine hits close to 8.5 lol

xogenic said:

firstly ace display picture lol

also 7.8 is ok mine hits close to 8.5 lol

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You use water with a ph of 8.5 without any issues? kiss-ass

8.5 yay lol i just ph correct with malt vinegar plants seem to grow ace look ill show


i have two tubs that hold 40 ltrs i fill em with the hose from the landing bathroom up to the attic then i just add all my nutes and test the ph usualy that will knock me close to 6 then i add a tiny bit malt vinegar to em and level em off to round 5.5 - 5.7
i like the higher acidity as i grow in canna coco and the coco is compleatly neutral