If its natural colours of photo, then your plant is ready for small feed in my opinion.
Her bright green colour of leaf shows me that.
Her redish leaf stems shows potencial mag problems, so i would add some calmag to feed or epsom salt.
Her curly down and droopy leaves looks to me like overwatering. Pot should be dry before you water.
There is plenty ways how to determine is your plant ready for watering, plant showing you that - worst of them ;)
For soil best ph is from 6.3 to 6.5. You can google nutrition absorb graph related to ph and you will see yourself.
Happy growing. Its wonderfull adventure !
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