Hi Kaye! It sounds like your starter may be ready to go. Generally, we are looking for a starter to double or triple in size within 4 to 8 hours after feeding, something that has good bubble formation as well as that fantastic aroma. I'll link a blog right below that dives a bit deeper into what to look for: Ripe Sourdough Starter: What does that look like? As for the float test, we have another blog specific to that process! The Float Test for Sourdough With discard, you really can use that as soon as your starter is showing signs of ripeness. Happy Baking!

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