On day 28, upper plant looks good, lower fan leaves pale green going on yellow, no feed until 2 days ago .25ml bio gow with 500ml water and temps higher than usual due to warm weather could this be the cause or low nitrogen due to late feed
Yes mate ; sudden change or increase in temperatures can show up all kinds of deficiencies in plants. Give some seaweed to overcome heat stress. On day 28 ;she looks amazing :).. keep it up