2+ year comparison of SL-Aqua vs. ADA Aquasoil?

AquaSoil is great for shrimp. Just beware that it gives of a lot of ammonia for the first month to six weeks of use. If I were you, consider getting it ahead of the tank setup and put it into a 5 gallon bucket. Make sure the bucket is food safe (available for purchase at Lowes). Place it in the bucket and fill with de-chlorinated water. Pour the water off every few days and refill. In a few weeks it will be ready to add to the tank and you won't be fighting an algae bloom like so many do at startup. Best of luck.

any update to this topic?

Check out UNS controsoil! Uns= ultum nature systems. I think buceplant sells it. Friggin awesome soil based substrate without too much ammonia. I just set up a tank with the original contro-soil and couldn’t be happier with it!