One thing that stands out to me is your nitrate reading of 80ppm. Readings should stay under 20ppm with an ideal reading of around 5-10ppm. This can be corrected by doing more water changes and larger quantities. Most of us here do approximately 50% of a change, once per week.
Lumps and bumps are hard to diagnose. Here is an article about them: http://www.badmanstropicalfish.com/articles/article25.html
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