roots got so big took over airstone,,water murky every other day,,leaves at bottom telling me she is pissed!! 9 weeks atm,, auto mimosas cake,, 3 wk in few

Do not cut on your roots in flowering. Some lower leaves will turn yellow if they are not getting enough light. She will still produce if you don't stress her out to death. Flowering npk ratio is 1-2-3. Changing the solution every day is not ideal in my opinion. It doesn't allow your root cultures to develop. Plus ph tends to jump around the first 48 hours. Which is stressful to the plant.

The extra air pump will help tons. I suggest you trim back the roots. Long roots are not needed in a DWC. I’ve had to do this multiple times because the root mass got too large as well. Get a pair of scissors and give them a good clean with alcohol. Cut back enough of the root so it’s not clogging out your air stone. Hope this helps.