my advice for next time is let the plants fully mature before you send them into flower, those are still babies flowering, which can cause wierd growth and stress,definately a loss of vigor. The way you tell when they are mature is once they show there preflowers. For this grow the only advice i can give you is take the 14l bucket out of the bucket and put it in a tray, dont let water always sit in the tray because it going to cut off the amount of oxygen the roots in the constant saturated soil recieve so thats less nutes and everything else. So after you water and you let the water sit, i recommend after about 6 hours or the next morning to remove the access water with a turkey baster or something from the tray. Forget about those roots, they will "air prune" themselves. You are growing in soil or? not hydroponics. Now just make sure the air is well ventilated and circulates around the plants constantly replacing lost co2. Try not to overwater or underwater, wait till about 2-4cm of top soil is dry then water.(best bet is a moisture meter until you get the drift) Keep the light as close to the plants as possible with out burning them or causing heat stress to avoid stretching and best possible penetration of light and the best lumen output since lumens degrade by half per every foot. so every inch counts. WARNING do NOT burn your PLANTS! Place your hand there were your plants are under the lamp and see if it hurts your hand after a few minutes. If your hand is ok then your plants are ok. About 30 cm to 45 cm distance from plant to bulb is the basic rule. Im as low as 18 cm but im using an adjust a wing with a super spreader, amazing they are! Well were are your plants? Do you have a nice white reflective surface around your plants so all the light is bounced back into the canapy? but avoid a reflective material underneath the plants. They do not reflect light from underneath, they breath with there lil stomata! Sorry bout the journal but KEEP IT GROWING, greetz SYZE