Good morning All Hope you all are fine this lovely morning Just wondering if I can ask you for your expert advice please :hail: I started my first project named "One Tree Hill" exactly just 7 days ago. Now I'm having Green Water Algae issue (so early?). I'm thinking the caused of this is maybe the cap/gravel I used to cover the top soil is too big and releasing too much nutrients? I replaced 90% of the water the other day, and then the next day the green water starts to appear again. What will be the best solution to resolved this? Just let it go for now till my plants established or to redo my project and replace the gravel with a smaller sized stones or maybe sand?