I don't have that much in one LN wallet, but I've just tested a $6 (37,500 sat) transaction from Phoenix Wallet (non custodial) to BlueWallet (custodial). This worked without problems, arrived in seconds. I paid 4 sats in fees.

This seems to be a good moment to reopen my Liberated: LoyceV's Legendary Little Lightning Loans for some more testing