It was suppose to say over 100. Fat fingers! This is just a corner. Start counting. Lol!You can count them
If you can see 109 I'm betting you have well over 200 and probably a lot more
For me that is a compelling reason to have a sand substrate. My tank has a filter chamber at the back and I siphon and add water there. Occasionally I will siphon from the surface of the main tank but never go near the substrate or plants. My sand stays clean because I also have malaysian trumpet snails. I do occasionally wave my hand above the sand to lift any debris into the water column to allow the filter to remove it.One thing I should mention - when you clean the tank, go through the old water carefully. Baby shrimps are very tiny and hard to see. My record is about 30 baby shrimps in the old water bucket at one water change. I use a transparent plastic jug to empty the water out of the bucket, and I can see the baby shrimps in that. I just suck them out with a pipette and return them to the tank. That's not possible with juveniles and adults though.