Help please

Hola! Looks like a nutrient burn during re-potting. 1 week feeding stoppage should help. Peace.

Hi! It is nutrient burn. You are feeding your plants an insane amount of nutrients. Have a look at Canna's grow guide and you'll get their recommendations for dosage.

It is so minor, I would not worry about it, some times trying to cure a imagined imperfection can do more harm than good. Go easy on the feeding though, little plants need little feeding, and I would suggest half strength as plenty for this sized plants and to have a routine of plain water/plain water/feed/plain water/plain water/feed etc, this should be ample nutrition. Once they have 8-10 nodes go to full strength, keeping with the water/water/feed/water/water/feed routine. This will prevent any nutrient salts building up in the substrate. Remember too, it is very easy to correct a slight under feeding, but very difficult to rescue a burnt and over fed plant. Flushing unnecessarily will just harm your plants and any healthy bacteria living in your substrate. Also, after looking at your diary, you seem to be feeding quite heavily and with fertilizers designed for hydroponics, you should really be using either Canna Coco or Canna Terra and not Canna Aqua, this is designed for a completely different situation and may not be ideal for your set up. And while I am offering advice, I would suggest next time to fill your pots right up to the top. This will allow three things, 1- more space for roots, which leads to faster and bigger growth, 2- allows your plants to sit higher, where they will receive more light, especially reflected light, 3- more substrate lessens the risk of having nutrient salts building up to toxic levels in the substrate. The pots will take up exactly the same amount of room in your tent anyhow, so you may as well provide maximum opportunity for root growth. Plus, the substrate usually compacts down and sinks a bit, so if your pots are only 80% full, in a week or four, they will be only 70% full, resulting in even less room for root growth. Had the pots been 100% full, you would still have 90% room at flowering time. Which brings me to my next point, with so many plants, you do not have much time until you go to 12/12, otherwise you are going to end up with a very crowded jungle of growth by having that many plants in pots so small and so close to each other. Although, if you intend doing the "sea of green" method, this close planting should not pose a real problem. Hope this helps,...... Organoman.

Hi there, Most of the deficiencies are difficult to tell if they are not very distinct.There could be alot of factors causing the problems.Deficiency sometimes doesn’t result from lack of nutrient.It may lockout due to improper pH or abundant of other nutrient in that pH.Find out the base cause. As long as you are giving the perfect growing conditions and feeding, they will not go worse.Before you do anything, make sure your water pH, ppm(EC) and run off are in corrected range.Keep your temp and RH in proper range which I prefer around 25C and 50% for all stages.Slightly different between day and night.In that way, you don’t need to worry much about your plants.If you are growing in soil, keep your pH around 6.0~6.5 for both of your water and run off.Also in soil,the less nutrient the better to prevent lockout.Happy Growing... ✌️

If its starts yellowing up the leaf more then its lack of Mag and if it starts to brown its getting burnt.It is hard to tell with such a small amount.Its always good to have some Epsom salts around.Give your plant a spray with Epsom if you see more yellow and flush if the yellow turns darker on the edges.

Hey there Scot, gotta disagree with MrWeeds here, it's magnesium deficiency as you can see from the discoloration on the serated edges of the leafs you should always have cal mag even in soil, these kinds of genetics simply need it to be healthy. If you add it the plant should recover very quickly in a week or so. Hope this helps .

Those tips are a sure sign of nutrient burn my friend. There are too many nutrients in the soil you need to flush it.