55°low - 79°high and 50% - 80% humidty too extreme? cause drooping, yellowing?

well all, im at a flippen loss here. im using ro-di water, great nute measurements, tuns of added areation to an ebb and flow so this is all that i can think it could be. tell me what you guys think of these temps for flowering. this is at ground level mind you, not canopy.

Temperature: 55°low - 79°high
Humidity: 50%↓ - 80%↑

my res doesnt have a water heater but its been staying i would think in the 40-60° range.....

55 is too low , 79 is aight

80% humidity is not so bad for veg and clones...but thats gonna get you some possible mold / mildew issues in flower

like, way too low? whats ideal? what about water temp?

you want your temps in the 70s... ive heard of people dropping the temps to make the plant purple tho i dont know much about it