You have big buds like that and no frost? Am I seeing that right, the bottom is green and the tops are yellow? Are you hand watering? How much coir are you growing in?

Every medium needs to be given plain water every now and then(aka flush). From what I have read about coir is suppose to be the shit. But, I dont think you could go a whole grow without ever flushing, salts build-up way to easily. The way I see the picture though it looks like an immobile element lock-out possibly Fe(iron). The problems are probably occuring from an incorrect ph.

Ph and ppm(ec) readings of fert mix would help.
gronnh20 Reviewed by gronnh20 on . need help from canna coco expert pls, 6 wks buddin shud i fert this? its well yellow n buds arent sticky n kinda pale,, skunk special.. i hav coco nutrients a and b and coco fibre... it says feed all the time but i duno..? it says coco dont need flushin either...? very unlikely i think... ive made up 10 liters with 40 ml each a and b max as it says, with a shot of bcuzz booster and bloom stim.... lettin it sit for a bit and am now askin u guys... shud i or not? :confused: last waterin was plain bcuzz booster n stims.. Rating: 5