Is this an indication something is wrong with my setup
I hadn't used my pod hydroponic setup (IDOO)for a bit and it had some old roots dried to the bottom. I cleaned it throughly and used a sanitizer and rinsed several times. I have the light running 16 hours a day and started the water pump, fan, and added nutrients after germination that runs at its default intervals that havent cause me issues in the past. I ended up using tap water but I am on city water that is good quality based on the recent testing results. Also ran on same tap water in the past without issues.
The marigold has these spots on it which I read is likely fungal but im not positive. No signs of mold on the cone. My dill had 2 seeds germinate and the one I plucked before getting a photo was looking a bit brown. The only other pod, cilantro, thats roots have reached through the cone looks fine.
Is this indicative of a problem somewhere. Should I remove the marigold?