1st grow, need advice

[Midnight toke]

Please can someone take a look at my plants and tell me if the yellowing is normal. I have a feeling it's not so any advice is welcome. My medium is canna coco professional and all my nutes are canna.
Thanks

 

[Light Addict]

Ok Im no expert on these matters but you have some clawing going on as well as the leaf discoloration lower down this makes me think you have a lock out and may need to flush your pots with twice their volume using ph'd water. Hopefully another more proficient member will drop a diagnosis soon. Sorry I cant aid further.

 

[Midnight toke]

Ok Im no expert on these matters but you have some clawing going on as well as the leaf discoloration lower down this makes me think you have a lock out and may need to flush your pots with twice their volume using ph'd water. Hopefully another more proficient member will drop a diagnosis soon. Sorry I cant aid further.

Thanks for that mate. I had a feeling there was a possible nitrogen lockout. I will do a full flush through tonight. Do I need to check the ph of the run off (root zone ph)?

 

[Midnight toke]

Ran some water through one of the worse looking ones. I put the ph'd water in at 6.1 it came out at 6.1, does this mean my root zone ph is ok? I'm looking at getting a nitrogen boost tomorrow.

 

[DirtKid]

I would bump the ph of the water up to 6.8. Better balance of nute uptake. Imo

 

[Midnight toke]

I have read this in quite a few places. I was looking at dolomite lime to keep my medium at 6.8/7 but I wasn't planning on repotting again.

I went to my local hydro shop today and they told me to try foliar feeding with formulex and ph'd water, as I haven't really done this. I'm presuming things aren't that bad that I need a nitrogen boost just yet.

I'm flipping them today so I'm just gonna give them a spray n hope things workout.

 

[Light Addict]

Hey my friend. Give a grower on here a shout on their thread. His name is Cultivator and he's a real top grower who has done loads of coco grows he will be able to aid you so much more than I can. best of buds to you!

 

[frankiez]

Lack of Nitrogen and lack of light to the lower branches