Peak margin for hedged positions

Hello,

The margin required for a bear call spread/bull put spread is around 25k. What is this peak margin ?
I always keep 5k as free funds behind every 25k used for 1 lot in an overnight spread position which is hedged. Do I have to keep more than this ?

You just have to ensure you are maintaining sufficient margin.

Keeping 5k extra for 25k margin is good.