This forum is very pro-high CO2. If your CO2 is spiky, then fix that. Since you have it on 24/7, I doubt it's spiky. Try higher CO2 if you must. I doubt you will find that it's the solution to your problem. If you have issues at an even and steady 25-30 ppm CO2, you're not going to fix it at 50 or 60. I think Solcielo is right about high light. BML is powerful. Cut it back to 30 or 40%. I'd stop the glut. Toss the liquid ferts. Get teeny tiny spoons and go with dry ferts. Go very, very light on ferts. I still think you're killing them with kindness. Hard to hurt plants with macros in slight excess if you do big water changes, but traces can hurt them before you get around to water changes. That's been my experience.