Wow, thats a diatom bloom. I am assuming they have not already come and gone, as they usually do? Do you use tap, or Rodi water? I believe the leading cause of diatoms is excess silicates.
best of luck!
I use ro water but the tank is only 3 weeks old and I'm just getting air bubbles in my dsb everything was dry at start no live stuff so I think it's going well just means that I got nitrates that the diatoms can feed off also phosphates went from 1 ppm to .4 And nitrates went from 120ppm to 40
Well haven't updated in a long time but I have ha battles lol guess the rock I got was horribad!!!! So been fighting gha but starting to win. Today I built my own reactor for biopellets