lightings, rocks leeching

[tippy]

hi seniors! new here still but there's tons of questions mark all over me. how do i know if my rock is leeching po4 no3? other then testing water parameters? aka troubleshoot the roots of po4 and no3 which leads to GHA, Brown Hair Algae growing all over the place? and my sump is full of coraline algae but my display/main tank has so little? due to lighting not enough on main tank? i'm sorry to start a dumb post but i really feel lost after googling and i dont get alot of the points in my HEAD!

[Aquareef123]

Live rocks don't leach no3, only po4. Unfortunately the only way to tell is water testing. Wat are your reading now for po4 and no3? If u don't feed anything to your tank and you run rowaphos but your po3 doesn't drop, your rock is leaching po4

[tippy]

ahh i dont feed and i still have tons of algae growing

[ASHWIN]

Firstly State Your Water Params bro

[artxakis]

got algae growing means still got phosphate right?