Organic nutes are not usually compatible with H2O2. It's reason #1 I don't use organic nutes. It's much harder to run an op when you depend on competing organisms to control pathogens as opposed to dosing the tanks with H2O2 (50% grade @ 1ml/L) every 3-4 days.
Remember, 'organic' means 'sourced from decomposed organic matter' not 'better' or 'safer.'