Well, checked the water yesterday and all parameters looked good. Did a 25% water change and dosed Flourish ferts.
Started reducing the photo period from 10 hours to 8. Also purchased an otto and six sakura shrimp to help combat the algae. Hopefully that and increasing the Excel dosing from 1.5ml to 2ml will help.
Rotala is starting to look a bit dull. Not sure if its the algae or if its missing nutrients. I'm hesitant to dose more for fear the algae will really take over. Is once a week enough? Crypts and chain sword are doing well otherwise.
Will post updated pictures later.