Reddish spots on leaves-Any Help?

This is a Pineapple Chunk in the fourth week of flowering. The spots started on one fan leaf a few weeks ago and now they are spreading. From what I've seen online, it looks like calcium deficiency, but I can't say for sure.

When the plant was just into its second week of flowering, the roots started coming out of all the holes in the bottom of the five-gallon pot she was in. I did not anticipate it would get so large (it's a good foot and a half taller than any of the other plants) so I repotted it into a ten-gallon pot, using Ocean Forest. The plant never showed any side effects of repotting, such as wilting or curling leaves, etc. I took great care not to disturb the root ball, and just set it into the larger pot and added soil around the root ball. I have given it no nutes since I repotted it and it continues to grow and produce.

Here is my setup:
--I am using Fox Farms Ocean Forest soil
--400 watt Lumitek system (MH for veg; HPS for flowing)
--Only using Fox Farms Big Bloom every other watering (except that I did not give it to her since I repotted her)
--Water: I am using now is 6.4 acidity; I watered them once or twice in the beginning with 6.2 acidity previously.
--RH is between 40% and 50% at all times
--Temp is between 68 to 72 during the day; between 63 and 65 at night

What do you guys think? Thanks for any information you can give me!

Anyone have any ideas? (*subtle bump*)

Why are you watering with acid water?

ya most likely nute lock or cal/mag def. a good flush then a N and secondary nutes to revigorate plant. GL.

also if thats your monster in the pic its not a space issue ive got a 52 in. in a 3 gallon bucket bushy and beautiful also 4 weeks into flowering.

This looks exactly like what I have going on with one of my plants. I'd definitely say nute lock. I am growing hydro though, so we're in a little bit different situations. Mine is caused by too much lime. Anyway I believe I have a mg deficiency. Your's could be a cal or mg deficiency. I would flush it, give it a dose of cal mag and nutes. But not too much because you don't want to add nute burn to that problem. Good luck.

PIPBoy2000 said:

Why are you watering with acid water?

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The water is a PH of 6.4, in other words...Chlorine and chemical free.

bungholemadness said:

also if thats your monster in the pic its not a space issue ive got a 52 in. in a 3 gallon bucket bushy and beautiful also 4 weeks into flowering.

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The roots were growing out of the bottom of the pot entirely; the pot it is in the pictures IS the pot I re-potted her into.

So if its a nutrient lockout and I have to flush, do I wait until her soil drys out again (which would take at least 3 days for her to), or can I flush regardless?

I'd like to know, because if so I will then flush all of my plants(regardless of how wet/dry the soil is), as I am starting to see other oddities on their fan leaves too.

Will salt buildup appear as a white/yellowish "buildup" where the drainage holes of the pot are? Vague question, but someone should know what Im talking about.

I always give mine plain Ph'd water before any feeding that way I know I am washing the older stuff out before i add the newer...What I would do is flush with a lot of water...so a 10 gallon pot...you would have to run 30 gallons of water through...jeez that is alot...here is another issue...you said you recently replanted into a larger pot and added fresh FFOF, well when you add new soil you are also adding new nutes...so when you flush it is likely you might cause some nuteburn...I would try to wait and just see how it goes...plain water only for a little bit...One of my plants looked like this last week and I though it was a magnesium issue so I added calmag and made the issue worse...I was making the problem because I had already added lime to the soil and then I was supplementing Cal-mag as well and it just seemed to be a little too much .,

missnu said:

I always give mine plain Ph'd water before any feeding that way I know I am washing the older stuff out before i add the newer...What I would do is flush with a lot of water...so a 10 gallon pot...you would have to run 30 gallons of water through...jeez that is alot...here is another issue...you said you recently replanted into a larger pot and added fresh FFOF, well when you add new soil you are also adding new nutes...so when you flush it is likely you might cause some nuteburn...I would try to wait and just see how it goes...plain water only for a little bit...One of my plants looked like this last week and I though it was a magnesium issue so I added calmag and made the issue worse...I was making the problem because I had already added lime to the soil and then I was supplementing Cal-mag as well and it just seemed to be a little too much .,

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I knew that the FFOF had nutes when I was adding it to the plant, I just had no other choice. It was either that or nothing at the time. Now I paying for it. I also had to re-pot ANOTHER plant, one of my Chrystal's, and now her leaves are looking worse than ever with the spots and marks. I do not know what to do, as their soil is pretty moist still, and I do not want to overwater them by flushing.

It has been 2 weeks since I re-potted Pineapple, and I have only watered with clean water since then, and the problem continues to worsen.

I use Fox farm soil as well. Your plants has mag def no doubt! I had this same identical problem with all my 16 plants
and I started using cal/mag with every watering and my plants are
back to perfect health in just a few days. My plants had the exact
symptoms as your plants, reddish spots and other spots, quick yellowing of leaves
and dying etc...No more cause I use cal/mag. Life saver for my plants big time.

Milovan said:

I use Fox farm soil as well. Your plants has mag def no doubt! I had this same identical problem with all my 16 plants
and I started using cal/mag with every watering and my plants are
back to perfect health in just a few days. My plants had the exact
symptoms as your plants, reddish spots and other spots, quick yellowing of leaves
and dying etc...No more cause I use cal/mag. Life saver for my plants big time.

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How come the spots only are really showing up on the plants I have re-potted though? If it was a def., wouldn't the rest of my girls be showing the same symptoms?

Have you checked for leave miners like spider mites? I can see most of the spotting is on the veins while the side tips look healthy