Friends, help me figure it out!! I have a problem again(

It looks like too much light. The light is too close or the intensity of the light is too high which causes it to look like it has a P or N deficiency. You will want to continue with your original Advanced Nutrients PH perfect triple part line you started with as they provide the full range of nutrients for the plant.

If not already, you need to use both Canna Aqua Vega part A and Canna Aqua Vega part B together for normal health. According to the Canna feed chart, 2ml/litre is the required dilution rate for both part A and part B, so 4ml/litre combined, which is a long way from your stated 1ml/litre that you are using in your diary. This is a nutrition problem, not a lighting or power supply problem.

N mangel

Yep i would agree GrowingGrannie's first statement. To much food. **Assuming you are giving both since GD does not have an A/B selection ) Reduce your feed to 0.6ml/L and raise by 0.1 every week. Stop when you get around 1.2ml/l to 1.5ml/l.

Just taken a look at them... If you're only using the Canna Aqua Vega A, your plant is getting zero phosphorous.. the NPK of that is 5-0-3... If you add in the Canna Aqua Vega B, with an NPK of 0-3-5, you'll have a more balanced nutrient combination your plant will appreciate... and yeah, it's ok to give them what amounts to bloom nutes at this stage - doesn't do them any harm - and the B gives your plant some phosphorous which it really needs! If you compare your nutes to what I'm using, I use all three (Gro, Bloom, Micro) throughout the grow period... in different proportions but they're all being given to the plant all the time... The only other thing I'm going to ask is if the roots have hit the water yet - I'm thinking they probably have - so you might want to add something like Rapid Start to get them really going strongly .... Good luck... dm me if you need more info!

I'm more concerned about your EC at the moment.. and maybe a bit concerned about your nutes... but I'll take the EC first... Week 1, you want the EC to be between 0.2 and 0.4 - so yours is much too high. Week 2, it should sit between 0.4 and 0.6... each week raising it until you get to Week 6 when your EC should sit at 1.2... and then maintain that EC straight through until a week before harvest when you drop the EC down to 0.2-0.4 again. Now the nutes... I'm not familiar with them... I'm using General Hydroponics Flora Series and can't say enough good things about them... but you want to make sure you've got a good NPK ratio in the nutes. You might also want to consider switching if you're unsure of them (I switched mid-grow and was SO happy I did). I'll take a look at the nutes you're using and if I have any particularly strong opinion, I'll come back and let you know... :-D