Gorilla ice cream

I've added an extra light, a dehumidifier, another co2 bag and I have fed once as the leafs started turning yellow and having not fed them whatsoever I assumed it was a lack of nutrients.. so I have done my first feed which I will probably do 2 times a week and just water on the rest of the days. I am going to be leaf tucking and snipping unwanted leafs of the lower section this week..