You can start with as little as 1 SOL. Marinade never creates stake accounts smaller than 1 SOL, so if you try to stake less than that, you’ll see the message: “You can’t stake less than 1 SOL.”
If you deposit under 100 SOL, your stake will be spread across fewer validators instead of the full set. For the best distribution and decentralization, we recommend staking 100 SOL or more so your position can be allocated across all validators in the strategy.