What is the minimum (lowest) amount of Ada needed to stake?
Could you have the delegation fee + 0.00001 Ada? Where is this referenced?
There is an initial 2.17 ADA fee when delegating a wallet for the first time.
Here's the breakdown of that: 2 ADA deposit goes towards registering your stake address on the blockchain and ~0.17 ADA is the transaction fee.
Note: the 2 ADA deposit is refundable upon unstaking
Happy staking!
The 2 ADA (current configuration of "keyDeposit") comes from the mainnet genesis file.
There is no staking minimum, but there is a UTXO minimum. With current protocol parameters, any UTXO on Cardano must have a minimum of 1 ADA (minUTXOvalue).
So while possible in principle, there is currently no way to create a UTXO, and thus to stake, anything less than 1 ADA.