COCO COIR HELP: Can't diagnose my issues

[FishCityFunk]

Hey all,
My Shark Shock is about 5 weeks old, started from seed in cycopearl coco. She's been pretty healthy up until the last week and a half. I know I need to pot her up, but I want to figure out her issues first. Temps 70-80, RH is swinging from 90% to 40% since I have a humidifier in the tent that goes on 30mins every 4 hours. Feed/water has been every 3 days; pH water (6.1) with CalMag (4mL/g) twice and half-strength week1 GH trio nutes. Other than calmag I've used Great White.

For the life of me I cannot diagnose the mottling leaf edges and new tip curl. No bugs seen. May have had a Mg deficiency two weeks back but increased CalMag. RH swings? Root issues? TIA for any advice!

[Pyro1711]

When my plant looked similar to that everyone told me it was nute burn, the other thing I would assume is that looking at your plant, I would guess by it's size it is getting pretty root bound. I know you mentioned it needs to be transplanted, she might start looking a little better once you put it in it's new pot and allowing it's roots to spread more. My guess would be there are a lot of extra nutes in that solo cup? Just a thought, I'm sure others will chime in.

[Chefbjy]

A bigger pot would likely solve the issue. Root problems can cause a lot of different symptoms. And you might be burning them with nutes since they really have no where to go. Put her in a bigger pot, decrease light intensity so she can get back to growing. Lay off the nutes till it recovers may need to reset itself. My 2cents.

[D.A.A.S.69]

Yeah as Chefby, an 1711 said, bigger pots, but you know that, that's probably where your problems started, roots are choking her

[Dutchman1]

I agree with everything previously said.

[Deadhead91]

What about wind burn possibly my plant looked light that after I had the fan too close or too high of setting

[Campesino]

Agree with pressing need to transplant.
Also, plant is pretty small for its age. It would grow a lot faster with more frequent waterings. Coco with perlite can be watered daily.
I would transplant up to a 5 gallon fabric pot and mix in at least 40% Perlite to the Coco. Then I would recommend watering everyday till run-off. But regardless, I think that transplanting is the most pressing concern.

[FishCityFunk]

Thanks everyone, I potted her up last night and she looks happier already this morning. Roots were certainly at edge of solo cup, but not circling yet. I'll probably wait a week and put her (and my Alien Rift clone) in their final 7gal smart pots. I'll start a grow journal soon too. Everyone's feedback and input has been super helpful here and I feel I may be getting in a bit over my head with 2 plants.
Thanks again!

[Chefbjy]

I like to start mine off in 1 gallon pots move up to 3 then to 7 but solo cup is a way to speed it up a bit.

[Campesino]

Deadhead91 that would be perfect. In Coco I do:
1. Pint (or solo cup)
2. 1/2 gallon or 1 gallon
3. 7 gallon final container

[Deadhead91]

Thank you guys going to do that next grow then