Brown leaf edges problem help

[dukewadd]

cant figure out whats causing the brown crispy edges. was useing the full remo line but switched back to canna 3 waters ago. no change yet. last pic is an older plant i didnt flip last round the damage gets worse.

 

[Beachwalker]

I think it's possibly a potassium deficiency most likely caused by a lockout but I'm not positive could you give us some more info on your medium and watering habits also I noticed the new growth seems twisted can you include another picture of the whole plant

 

[Anthem]

cant figure out whats causing the brown crispy edges. was useing the full remo line but switched back to canna 3 waters ago. no change yet. last pic is an older plant i didnt flip last round the damage gets worse.

I have seen that kind of leaf damage when there is a lot of wind movement and the leaves rub again each other. Overall the plant looks pretty healthy. Have you spayed a foliar on it? I am seeing something on the leaves that is either foliar or fungal gnats

 

[Vaqueros Verde]

What is your watering scheme? What PH, ppm/ec runoff? Burning tips and edges usually mean over fert.