If your water isn’t clear I will second the filter suggestion… your tap water is a big unknown and, unknown stuff in your water can potentially cause a lockout, you want to minimize your unknowns.
Your pics are screaming Calcium deficiency, it looks like a pH issue. Have you checked your runoff pH? Or maybe performed a slurry test?
- Check the runoff/ slurry pH first, if its off try to get it where it needs to be.
- If the pH of the runoff looks good, implying the plants should be growing better, then I would seriously consider getting a filter.