Fen buds

Had problems this week. Black mould on one wall that I didnt insulate. So had to treat that. Also increasing light intensity has caused some cooling issues installing a bigger intake fan tomorrow so will keep an eye on that. Also got some signs of possible nute excess but ph had moved up slightly to 6.2, so I am sticking to my nute intensity increase schedule but will be quick to adjust if need be but I want them to show for sure whats wrong before I alter anything.