Hi, Treavor! It's fairly normal to see a slump in activity around Day 5 or so. If you want, you can try giving your starter a couple feedings of whole wheat or rye flour; sometimes that extra nutritional boost helps nudge it in the direction of full maturity. Other than that, just keep feeding it! Starters, like all living things, grow up at their own pace. It'll get there! 

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