Depending on where you are and how your tap water is treated, that could easily be the explanation for sluggish starter. A lot of places in the US specifically treat water with chemicals that kill microbes. Sourdough starter is microbes.
You might want to buy a gallon of spring water from the store and try using that instead of the tap water.
Sorry, here’s a picture from the side. I haven’t been able to find a smaller container yet.
It has 1 or 2 bubbles, smells like regular flour to me, and isn’t watery.
Is it possible I started a “bad” starter and should try again?
Weigh the jar empty (so you always know how much starter you have).
Mix together 40g whole rye flour + 50g pineapple juice.
Mix it very well and clean down the sides with the spoon or a spatula.
Take a photo when done and post it here.
When judging the expansion of your starter, keep in mind that your container is flared, so what looks like not quite double, may actually be more than doubled.