There is no official Catalyst payout threshold.
You need to do three steps to set it:
- Enable Catalyst for the altcoin of your choice
- Set your altcoin threshold (we send your altcoins to catalyst at this amount)
- Set your BTC threshold (we send your BTC to catalyst at this amount)
Those thresholds can be set My Account tab.
Please note that catalyst uses smart conversion technology by consolidating conversions, so payouts typically take a bit longer than regular payouts.