Needing help. Finally ran into my first major issue that I was hoping to avoid. Algae in reservoir. I used a clear tub with a white lid and it's inside the tent which i know in hindsight was not a good idea, and this morning when I checked ph I couldn't hear air flowing from stones I pulled them up and they were 100% coated in a slimy algae. I want to stop this before it's an issue but I have 25 minutes of light left. Anyone please advise? Ph rises each day from 5.5-7.5 as it has cycled the majority of the grow. The algae formation doesn't seem to be driving the ph in either direction