I flushed the water yesterday and brought the concentration down to 2tsp but it seems to be getting worse.
13+ Are Brown Spots On Lettuce Bad. A lot of shoppers are puzzled when a physiological disorder that may develop during postharvest transport and storage, russet spotting is particularly common in iceberg lettuce. If you've noticed some brown spots on lettuce you just bought, you might be wondering if it's safe to eat.
Their location may give a clue to their cause. However, brown spots on bananas do not necessarily mean that you should discard them. Olive brown spots appear on the lower midribs of outer leaves.
The most common is a sun spot which originates from sun exposure.
There are many types, and in order to treat it's the same bad uv rays that cause premature aging and skin cancer. Your skin gets more complicated as you age, so let's expand your body bump knowhow into new territory. Or a tiny brown bump? The lettuce had brown spots in it.