so there is no reward for staking ?
No:
Specifications
(42-v0.0.8)
PoS reward: 0 coin // makes 42 an extremely rare
Min stake age: 42 hours
Max stake age: Unlimited
PoS target spacing: 7 minutes
...
I see, so basically only the tx fee is removed from the total supply with each new transaction, whatever amount you hold, won't change without moving it.