u/Important_Put_3520

I just made this dough Thursday and had some left over I was going to make for dinner tonight until I noticed this . Is this mold or just part of the flour? I use caputo 00

Pool has been opened about 3 weeks, a warm dry winter gave us a pretty dark green algae load.

Since then I’ve shocked it and gotten the levels in range. Ph 7.6, FC 5, cya 50, calcium 300, TA 90

I’ve added DE media to the intake and fine mesh filter socks. I’m having steady improvement it’s just taken a lot longer than it did last year but we’ve only been in this house about 2 years and it’s my second time opening it. Should I consider changing the filter sand?